Relevant bibliographies by topics / Surface properties of condensed matter

Academic literature on the topic 'Surface properties of condensed matter'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Surface properties of condensed matter"

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Ritchie, R. H., and A. Howie. "Inelastic scattering at surfaces and interfaces." Proceedings, annual meeting, Electron Microscopy Society of America 44 (August 1986): 392–93. http://dx.doi.org/10.1017/s0424820100143560.

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An important part of condensed matter physics in recent years has involved detailed study of inelastic interactions between swift electrons and condensed matter surfaces. Here we will review some aspects of such interactions.Surface excitations have long been recognized as dominant in determining the exchange-correlation energy of charged particles outside the surface. Properties of surface and bulk polaritons, plasmons and optical phonons in plane-bounded and spherical systems will be discussed from the viewpoint of semiclassical and quantal dielectric theory. Plasmons at interfaces between dissimilar dielectrics and in superlattice configurations will also be considered.
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BOHR, HENRIK, JOHN H. IPSEN, and STEEN MARKVORSEN. "CONDENSED MATTER PHYSICS OF BIOMOLECULE SYSTEMS IN A DIFFERENTIAL GEOMETRIC FRAMEWORK." International Journal of Modern Physics B 21, no. 13n14 (May 30, 2007): 2475–92. http://dx.doi.org/10.1142/s0217979207043828.

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In this contribution biomolecular systems are analyzed in a framework of differential geometry in order to derive important condensed matter physics information. In the first section lipid bi-layer membranes are examined with respect to statistical properties and topology, e.g. a relation between vesicle formation and the proliferation of genus number. In the second section differential geometric methods are used for analyzing the surface structure of proteins and thereby understanding catalytic properties of larger proteins.
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Punkkinen, M. P. J., Q. M. Hu, S. K. Kwon, B. Johansson, J. Kollár, and L. Vitos. "Surface properties of 3dtransition metals." Philosophical Magazine 91, no. 27 (September 21, 2011): 3627–40. http://dx.doi.org/10.1080/14786435.2011.586953.

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Sehmbey, M. S., M. R. Pais, and L. C. Chow. "Effect of surface material properties and surface characteristics inevaporative spray cooling." Journal of Thermophysics and Heat Transfer 6, no. 3 (July 1992): 505–12. http://dx.doi.org/10.2514/3.389.

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Hamed, Rania, Daniel M. Schenck, and Jennifer Fiegel. "Surface rheological properties alter aerosol formation from mucus mimetic surfaces." Soft Matter 16, no. 33 (2020): 7823–34. http://dx.doi.org/10.1039/d0sm01232g.

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The effects of surface tension and surface viscoelastic properties on the formation of aerosol droplets generated from mucus-like viscoelastic gels (mucus mimetics) during shearing with a high velocity air stream were investigated.
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Tsvetkov, V. A., O. V. Tsvetkov, and V. A. Balandin. "Anisotropic Properties of the LC Surface Tension." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 329, no. 1 (August 1999): 305–12. http://dx.doi.org/10.1080/10587259908025951.

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de la Fuente, O. Rodríguez, M. A. González-Barrio, V. Navarro, B. M. Pabón, I. Palacio, and A. Mascaraque. "Surface defects and their influence on surface properties." Journal of Physics: Condensed Matter 25, no. 48 (November 7, 2013): 484008. http://dx.doi.org/10.1088/0953-8984/25/48/484008.

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Xiao, Xingcheng, Yang Tse Cheng, Brian W. Sheldon, and Janet Rankin. "Condensed water on superhydrophobic carbon films." Journal of Materials Research 23, no. 8 (August 2008): 2174–78. http://dx.doi.org/10.1557/jmr.2008.0260.

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Nanostructured carbon materials, including carbon nanotubes, nanofibers, and nanowalls, exhibit a wide range of interesting properties dictated by the many different bonding configurations. Many of these materials can possess superhydrophobic behavior when water drops are placed on their surfaces: these drops have high contact angles and can roll freely on the surfaces, which is desirable for self-cleaning. In this work, we prepared porous carbon films using a microwave plasma enhanced chemical vapor deposition technique. These films showed superhydrophobicity with contact angle of 150°, which was explained by the synergetic effect of the highly rough surface combined with the hydrogen terminated edges of graphene sheets. However, the condensed water drops can behave differently: the drops did not roll readily. This behavior mimicked that of water on lotus leaves and further demonstrated that the reported superhydrophobic behavior is a function of how the water gets on to the surfaces.
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Lai, W. S., Y. N. Osetsky, and D. J. Bacon. "Point-defect properties of and sputtering events in the {001} surfaces of Ni3Al I. Surface and point-defect properties." Philosophical Magazine 84, no. 2 (January 11, 2004): 173–91. http://dx.doi.org/10.1080/14786430310001623560.

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Shina, Hoon-Kyu, Jeong-Yeul Seo, Hyein Jeong, Burm-Jong Lee, and Young-Soo Kwona. "Electrical Properties and Surface Structure of Polyurethane Monolayers." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 370, no. 1 (October 2001): 395–98. http://dx.doi.org/10.1080/10587250108030114.

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Dissertations / Theses on the topic "Surface properties of condensed matter"

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Caramella, Lucia. "Theoretical spectroscopy of realistic condensed matter systems." Paris 6, 2009. http://www.theses.fr/2009PA066019.

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Le sujet de cette these porte sur des calculs ab initio de proprietes d'etat fondamental et excite de systemes differents, dans le cadre de la dft et de la tddft. Du cote numerique, nous avons mis en oeuvre une methode originale pour l'evaluation de la polarisabilite dynamique a particules independantes, et generalise un code au spin dans le but d'etudier les proprietes magnetiques de systemes reels. Nous avons etudie des spectres de reflectivite anisotrope et de perte d'energie pour la surface (100) du silicium, propre ou oxydee. La comparaison entre les spectres mesures et simules, nous ont permis d'exclure la reconstruction p(2x1). En suite, nous avons mis en evidence le probleme de la description des excitations des systemes a couche ouverte presente un etude des proprietes optiques d'alliage magnetique interessants pour des applications en spintronique. Nous avons evalue les proprietes d'etat fondamental de ces alliages et la conductivite du fer ccc.
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DiLisi, Gregory Anthony. "Oligomeric liquid crystals: Viscoelastic properties and surface interactions." Case Western Reserve University School of Graduate Studies / OhioLINK, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=case1060023040.

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Delage, Patrick. "Growth mode and frictional properties of ultrathin films of sodium chloride on copper surfaces." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84022.

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The epitaxial growth of ultrathin films of NaCl was achieved on a Cu(100) substrate at room temperature. The growth mode was observed to be of the Stranski-Krastanov type using non-contact AFM, with well-oriented square islands growing on top of the first monolayer of NaCl. The frictional properties of different monolayers were measured using contact mode AFM. The friction contrast between the different monolayers of NaCl was found to be too small to be measured within the noise. Atomic stick-slip measurements were performed on a NaCl island. The results are discussed in comparison with relevent literature on thin films of alkali halides.
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Haider, Muhammad Baseer. "Surface and Bulk Properties of Magnetically Doped GaN and Their Dependence on the Growth Conditions." Ohio University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1132011994.

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Patra, Abhirup. "Surface properties, adsorption, and phase transitions with a dispersion-corrected density functional." Diss., Temple University Libraries, 2018. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/516784.

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Physics
Ph.D.
Understanding the “incomprehensible” world of materials is the biggest challenge to the materials science community. To access the properties of the materials and to utilize them for positive changes in the world are of great interest. Often scientists use approximate theories to get legitimate answers to the problems. Density functional theory (DFT) has emerged as one of the successful and powerful predictive methods in this regard. The accuracy of DFT relies on the approximate form of the exchange-correlation (EXC) functional. The most complicated form of this functional can be as accurate as more complicated and computationally robust method like Quantum Monte Carlo (QMC), Random Phase Approximation (RPA). Two newest meta-GGAs, SCAN and SCAN+rVV10 are among those functionals. Instantaneous charge fluctuation between any two objects gives rise to the van der Waals (vdW) interactions (often termed as dispersion interactions). It is a purely correlation effect of the interacting electrons and thus non-local in nature. Despite its small magnitude it plays a very important role in many systems such as weakly bound rare-gas dimers, molecular crystals, and molecule-surface interaction. The traditional semi-local functionals can not describe the non-local of vdW interactions; only short- and intermediate-range of the vdW are accounted for in these functionals. In this thesis we investigate the effect of the weak vdW interactions in surface properties, rare-gas dimers and how it can be captured seamlessly within the semi-local density functional approximation. We have used summed-up vdW series within the spherical-shell approximation to develop a new vdW correction to the meta-GGA-MS2 functional. This method has been utilized to calculate binding energy and equilibrium binding distance of different homo- and hetero-dimers and we found that this method systematically improves the MGGA-MS2 results with a very good agreement with the experimental data. The binding energy curves are plotted using this MGGA-MS2, MGGA-MS2-vdW and two other popular vdW-corrected functionals PBE-D2, vdW-DF2. From these plots it is clear that our summed-up vdW series captures the long-range part of the binding energy curve via C6, C8, and, C10 coefficients. The clean metallic surface properties such as surface energy, work functions are important and often play a crucial role in many catalytic reactions. The weak dispersion interactions present between the surfaces has significant effect on these properties. We used LDA, PBE, PBSEsol, SCAN and SCAN+rVV10 to compute the clean metallic surface properties. The SCAN+rVV10 seamlessly captures different ranges of the vdW interactions at the surface and predicts very accurate values of surface energy ( ) , and work function (𝞥) and inter-layer relaxations (𝞭%). Our conclusion is adding non-local vdW correction to a good semi-local density functional such as SCAN is necessary in order to predict the weak attractive vdW forces at the metallic surface. The SCAN+rVV10 has also been employed to study the hydrogen evolution reaction (HER) on 1T-MoS2. We have chosen as a descriptor differential Gibbs free energy (𝚫 GH ) to understand the underlying mechanism of this catalytic reaction. Density functional theory calculations agree with the experimental findings. In the case of layered materials like 1T-MoS2, vdW interactions play an important role in hydrogen binding, that SCAN+rVV10 calculation was able to describe precisely. We have also used SCAN and SCAN+rVV10 functionals to understand bonding of CO on (111) metal surfaces, where many approximations to DFT fail to predict correct adsorption site and adsorption energy. In this case SCAN and SCAN+rVV10 do not show systematic improvements compared to LDA or PBE, rather, both SCAN and SCAN+rVV10 overbind CO more compared to PBE but less compared to the LDA. This overbinding of CO is associated with the incorrect charge transfer from metal to molecule and presumably comes from the density-driven self-interaction error of the functionals. In this thesis we assessed different semi-local functionals to investigate molecule surface systems of 𝞹-conjugated molecules (thiophene, pyridine) adsorbed on Cu(111), Cu(110), Cu(100) surfaces. We find the binding mechanism of these molecules on the metallic surface is mediated by short and intermediate range vdW interactions. Calculated values of binding energies and adsorbed geometries imply that this kind of adsorption falls in the weak chemisorption regime. Structural phase transitions due to applied pressure are very important in materials science. However, pressure induced structural phase transition in early lanthanide elements such as Ce are considered as abnormal first order phase transition. The Ce 𝝰-to-𝝲 isostructural phase transition is one of them. The volume collapse and change of magnetic properties associated with this transition are mediated by the localized f-electron. Semi-local density functionals like LDA, GGA delocalize this f-electron due to the inherent self-interaction error (SIE) of these functionals. We have tested the SCAN functional for this particular problem, and, it was found that the spin-orbit coupling calculations with SCAN not only predicts the correct magnetic ordering of the two phases, but also gives a correct minima for the high-pressure 𝝰-Ce phase and a shoulder for the low-pressure 𝝲-Ce phase.
Temple University--Theses
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Torrance, David Britt. "Growth and electronic properties of nanostructured epitaxial graphene on silicon carbide." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50205.

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The two-dimensional phase of carbon known as graphene is actively being pursued as a primary material in future electronic devices. The goals of this thesis are to investigate the growth and electronic properties of epitaxial graphene on SiC, with a particular focus on nanostructured graphene. The first part of this thesis examines the kinetics of graphene growth on SiC(0001) and SiC(0001 ̅) by high-temperature sublimation of the substrate using a custom-built, ultra-high vacuum induction furnace. A first-principles kinetic theory of silicon sublimation and mass-transfer is developed to describe the functional dependence of the graphene growth rate on the furnace temperature and pressure. This theory can be used to calibrate other graphene growth furnaces which employ confinement controlled sublimation. The final chapter in this thesis involves a careful study of self-organized epitaxial graphene nanoribbons (GNRs) on SiC(0001). Scanning tunneling microscopy of the sidewall GNRs confirms that these self-organized nanostructures are susceptible to overgrowth onto nearby SiC terraces. Atomic-scale imaging of the overgrown sidewall GNRs detected local strained regions in the nanoribbon crystal lattice, with strain coefficients as high as 15%. Scanning tunneling spectroscopy (STS) of these strained regions demonstrate that the graphene electronic local density of states is strongly affected by distortions in the crystal lattice. Room temperature STS in regions with a large strain gradient found local energy gaps as high as 400 meV. Controllable, strain-induced quantum states in epitaxial graphene on SiC could be utilized in new electronic devices.
Per request of the author and the advisor, and with the approval of the graduate office, the Acknowledgements page was replaced with an errata.
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Alcantara, Ortigoza Marisol. "Theoretical studies of electronic, vibrational, and magnetic properties of chemisorbed surfaces and nanoalloys." Diss., Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/496.

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Regoutz, Anna. "Structural and electronic properties of metal oxides." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:6f425890-b211-4b35-b438-b8de18f7ae64.

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Metal oxides are of immense technological importance. Their wide variety of structural and electronic characteristics leads to a flexibility unrivalled by other groups of materials. However, there is still much debate about the fundamental properties of some of the most widely used oxides, including TiO2 and In2O3. This work presents high quality, in-depth characterisation of these two oxides in pure and doped form, including soft and hard X-ray photoelectron spectroscopy and X-ray diffraction. Bulk samples as well as thin film samples were prepared analysed. For the preparation of thin films a high quality sol-gel dip-coating method was developed, which resulted in epitaxial films. In more detail the organisation of the thesis is as follows: Chapter 1 provides an introduction to key ideas related to metal oxides and presents the metal oxides investigated in this thesis, In2O3, Ga2O3, Tl2O3, TiO2, and SnO2. Chapter 2 presents background information and Chapter 3 gives the practical details of the experimental techniques employed. Chapters 4 presents reciprocal space maps of MBE-grown In2O3 thin films and nanorods on YSZ substrates. Chapters 5 and 6 investigate the doping of In2O3 bulk samples with gallium and thallium and introduce a range of solid state characterisation techniques. Chapter 7 describes the development of a dip-coating sol-gel method for the growth of thin films of TiO2 and shows 3D reciprocal space maps of the resulting films. Chapter 8 concerns hard x-ray photoelectron spectroscopy of undoped and Sn-doped TiO2. Chapter 9 interconnects previous chapters by presenting 2D reciprocal space maps of nano structured epitaxial samples of In2O3 grown by the newly developed sol-gel based method. Chapter 10 concludes this thesis with a summary of the results.
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Bekele, Selemon. "Structural and Dynamical Properties of Water and Polymers at Surfaces and Interfaces: A Molecular Dynamics Investigation." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1530040420616781.

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Bidermane, Ieva. "Structure and Electronic Properties of Phthalocyanine Films on Metal and Semiconductor Substrates." Doctoral thesis, Uppsala universitet, Molekyl- och kondenserade materiens fysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-217086.

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The current thesis presents fundamental studies of phthalocyanines (Pcs), a group of organic macro-cycle molecules. The use of phthalocyanine molecular films in devices with a variety of possible technological applications has been the reason of the many studies dedicated to such molecules during the last decades. Core and valence photoelectron spectroscopies (PES), X-ray absorption spectroscopy (XAS) and scanning tunneling microscopy (STM) techniques are used to study phthalocyanine molecules in gas phase and adsorbed on gold (111) and silicon Si(100)-2x1 substrates. Density functional theory (DFT) is used to obtain further insights in the electronic structure of the phthalocyanines. The aim of our studies is to get a deeper understanding into the molecule-molecule and molecule-substrate interactions, a fundamental requirement for improving the devices based on such molecular materials. Gas phase PES and XAS studies and single molecule DFT calculations are performed on the valence band (VB) of iron phthalocyanine (FePc), manganese phthalocyanine (MnPc) and metal-free phthalocyanine (H2Pc). The VB simulations have shown how the metal atom of the Pc influences the inner valence states of the molecules. The HOMO of the H2Pc and FePc is formed by mostly C2p states, whereas the HOMO of MnPc has mainly Mn3d character. PES studies of H2Pc on Au(111) have revealed the influence of the surface on the adsorption of the monolayer. XAS studies indicate formation of ordered monolayer with the Pc ligands parallel to the surface and the change of the molecular tilt angle with increasing thicknesses. For LuPc2 adsorbed on Au(111), STM study demonstrates a formation of bilayer instead of a monolayer. A comparison between the results of LuPc2 adsorbed on pristine or passivated Si(100)-2x1 confirmes the different reactivities of these surfaces: LuPc2 retains many molecular-like characters, when adsorbed on the innert passivated Si. Instead, on the more reactive pristine Si surface, the spectroscopic results have indicated a more significant interaction, possible hybridization and charge redistribution between the molecules and the surface. Moreover, STM images show a modification of the geometrical shape of the molecules, which are proposed to adsorb in two different geometries on the pristine Si surface.
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Books on the topic "Surface properties of condensed matter"

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service), SpringerLink (Online, ed. Nanophenomena at Surfaces: Fundamentals of Exotic Condensed Matter Properties. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2011.

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V, Chang John, ed. Trends in condensed matter physics research. Hauppauge, N.Y: Nova Science Publishers, 2005.

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P, Norris Charles, ed. Surface science: New research. Hauppauge, N.Y: Nova Science Publishers, 2005.

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Kawazoe, Yoshiyuki. Structure and Properties of Aperiodic Materials. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003.

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Binational USA-USSR Symposium on Laser Optics of Condensed Matter (4th 1990 Irvine, Calif.). Laser optics of condensed matter. New York: Plenum Press, 1991.

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1927-, Birman Joseph Leon, Cummins Herman Z. 1933-, and Kapli͡a︡nskiĭ A. A, eds. Laser optics of condensed matter. New York: Plenum Press, 1988.

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author, Dai Ning 1959, Jiang Xunya 1967 author, Zhao, Haibin (Physics Professor), author, Jin, Kuijuan (Physics Professor), author, and Liu, Hui (Physics Professor), author, eds. Advances in condensed matter optics. Berlin: De Gruyter, 2014.

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Jai, Singh, ed. Optical properties of condensed matter and applications. Chichester, England: John Wiley, 2006.

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Singh, Jai, ed. Optical Properties of Condensed Matter and Applications. Chichester, UK: John Wiley & Sons, Ltd, 2006. http://dx.doi.org/10.1002/0470021942.

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Singh, Jai. Optical Properties of Condensed Matter and Applications. New York: John Wiley & Sons, Ltd., 2006.

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Book chapters on the topic "Surface properties of condensed matter"

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Bortolani, V., A. Franchini, and G. Santoro. "Surface Phonon Calculations in Metals and Comparison with Experimental Techniques." In Electronic Structure, Dynamics, and Quantum Structural Properties of Condensed Matter, 401–49. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4757-0899-8_9.

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Louie, Steven G. "Pseudopotentials and Total Energy Calculations: Applications to Crystal Stability, Vibrational Properties, Phase Transformations, and Surface Structures." In Electronic Structure, Dynamics, and Quantum Structural Properties of Condensed Matter, 335–98. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4757-0899-8_8.

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Dattagupta, Sushanta, and Sanjay Puri. "Surface-Directed Spinodal Decomposition and Surface Enrichment." In Dissipative Phenomena in Condensed Matter, 105–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-06758-1_5.

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Gernoth, K. A., J. W. Clark, G. Senger, and M. L. Ristig. "Excitations of the Surface of Liquid 4He." In Condensed Matter Theories, 195–203. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2934-7_18.

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Greeff, C. W., B. E. Clements, and H. R. Glyde. "Single Particle Properties of Atomic Deuterium." In Condensed Matter Theories, 85–97. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3686-4_7.

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Mirabella, D., R. Deza, and C. M. Aldao. "A Simple Approach to Surface States in Covalent Crystals." In Condensed Matter Theories, 201–6. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3352-8_19.

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Kalman, G. "Dynamical Properties of Strongly Coupled Coulomb Systems." In Condensed Matter Theories, 163–78. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3352-8_16.

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Brown, R. G., and M. Ciftan. "Convergence Properties of an Exact Band Theory." In Condensed Matter Theories, 215–34. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4615-6707-3_22.

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Sander, D., and H. Ibach. "4.4 Surface free energy and surface stress." In Landolt-Börnstein - Group III Condensed Matter, 303–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/10783464_10.

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Heine, Volker. "Theory of Surface States." In Perspectives in Condensed Matter Physics, 83–90. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-009-0657-0_9.

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Conference papers on the topic "Surface properties of condensed matter"

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Chithra, M., C. N. Anumol, and Subasa C. Sahoo. "Effect of surface coating on magnetic properties of cobalt ferrite nanoparticles." In INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2015): Proceeding of International Conference on Condensed Matter and Applied Physics. Author(s), 2016. http://dx.doi.org/10.1063/1.4946410.

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Anjali, J. K. Goswamy, and Mamta Sharma. "Optical and surface properties of bio-synthesized silver nanoparticles." In 3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0005457.

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Patel, S. L., A. Purohit, S. Chander, and M. S. Dhaka. "Optical properties and surface topography of CdCl2 activated CdTe thin films." In 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5032984.

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Shugani, Mani, Mahendra Aynyas, and S. P. Sanyal. "First principle study of structural, electronic and fermi surface properties of aluminum praseodymium." In 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5033042.

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Godara, Sachin Kumar, Parambir Singh Malhi, Varinder Kaur, Ashwani Kumar Sood, Sukhleen Bindra Narang, Gopala Ram Bhadu, Jayesh C. Chaudhari, Ishita Pushkarna, and Mandeep Singh. "Effect of calcination temperature on structural, magnetic and surface morphological properties of BaZn0.6Zr0.6Fe10.8O19." In 3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0001363.

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Nasalapure, Anand V., Raju K. Chalannavar, and Ravindra B. Malabadi. "Preparation of poly(vinyl alcohol)/chitosan/starch blends and studies on thermal and surface properties." In 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5032996.

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Shah, M., M. Satalkar, S. N. Kane, N. L. Ghodke, A. K. Sinha, L. K. Varga, J. M. Teixeira, and J. P. Araujo. "Thermal treatment induced modification of structural, surface and bulk magnetic properties of Fe61.5Co5Ni8Si13.5B9Nb3 metallic glass." In 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5033108.

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Suthar, Lokesh, Falguni Bhadala, M. Roy, and V. K. Jha. "Transport (electrical and thermal) properties and surface morphology of Y1−xCaxFeO3 (where x = 0.03 and 0.05) ceramics." In 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5032715.

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Bhardwaj, Jai Shree, Pilik Basumatary, Ankit Kumar Singh, and Pratima Agarwal. "Comparative study of chemically and thermally reduced graphene oxide based on their specific surface area, structural and electrical properties." In 3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0001413.

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Kryukova, Olga, and Alexey Maslov. "Calculation of the effective properties of the surface layer of titanium nickelide after tantalum and oxygen ions treatment." In HIGH-ENERGY PROCESSES IN CONDENSED MATTER (HEPCM 2019): Proceedings of the XXVI Conference on High-Energy Processes in Condensed Matter, dedicated to the 150th anniversary of the birth of S.A. Chaplygin. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5117434.

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Reports on the topic "Surface properties of condensed matter"

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Ulloa, S. E. Electronic states in systems of reduced dimensionality. [Dept. of Physics and Astronomy and Condensed Matter and Surface Sciences Program, Ohio Univ. , Athens, Ohio]. Office of Scientific and Technical Information (OSTI), May 1993. http://dx.doi.org/10.2172/6425342.

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Jarvis, Stacey, Thomas Douglas, Karen Foley, Robert Jones, John Anderson, Stephen Newman, and Robyn Bartaro. Spectral assessment of soil properties : standoff quantification of soil organic matter content in surface mineral soils and Alaskan peat. Engineer Research and Development Center (U.S.), September 2017. http://dx.doi.org/10.21079/11681/22904.

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Chefetz, Benny, Baoshan Xing, and Yona Chen. Interactions of engineered nanoparticles with dissolved organic matter (DOM) and organic contaminants in water. United States Department of Agriculture, January 2013. http://dx.doi.org/10.32747/2013.7699863.bard.

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Background: Engineered carbon nanotubes (CNTs) are expected to be increasingly released into the environment with the rapid increase in their production and use. The discharged CNTs may interact with coexisting contaminants and subsequently change environmental behaviors and ecological effects of both the CNTs themselves and the contaminants. Dissolved organic matter (DOM) plays a critical role in the transport of CNTs in the aquatic environment, affecting both CNT's surface properties through adsorption, and its colloidal stability in solution. Therefore, CNT-bound DOM complexes may interact with coexisting contaminants, thus affecting their environmental fate. With increasing production and use of CNTs, there is an increasing risk that humans could be exposed to CNTs mainly through ingestion and inhalation. Since CNTs can be carriers of contaminants due to their high adsorption affinity and capacity, the distribution of these nanoparticles in the environment holds a potential environmental and health risk. Project objectives: The overall goal of this project was to gain a better understanding of the environmental behavior of engineered nanoparticles with DOM and organic pollutant in aqueous systems. The scope of this study includes: characterizing various types of engineered nanoparticles and their interaction with DOM; binding studies of organic contaminants by nanoparticles and DOM-nanoparticle complexes; and examining interactions in DOM-nanoparticles-contaminant systems. Major conclusions, solutions and achievements: DOM has a pronounced effect on colloidal stability of CNTs in solution and on their surface chemistry and reactivity toward associated contaminants. The structure and chemical makeup of both CNTs and DOM determine their interactions and nature of formed complexes. CNTs, contaminants and DOM can co-occur in the aquatic environment. The occurrence of co-contaminants, as well as of co-introduction of DOM, was found to suppress the adsorption of organic contaminants to CNTs through both competition over adsorption sites and direct interactions in solution. Furthermore, the release of residual contaminants from CNTs could be enhanced by biomolecules found in the digestive as well as the respiratory tracts, thus increasing the bioaccessibility of adsorbed contaminants and possibly the overall toxicity of contaminant-associated CNTs. Contaminant desorption could be promoted by both solubilization and sorptive competition by biological surfactants. Scientific and agricultural implications: The information gained in the current project may assist in predicting the transport and fate of both CNTs and associated contaminants in the natural environment. Furthermore, the results imply a serious health risk from contaminant-associated CNTs.
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Friedman, Shmuel, Jon Wraith, and Dani Or. Geometrical Considerations and Interfacial Processes Affecting Electromagnetic Measurement of Soil Water Content by TDR and Remote Sensing Methods. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7580679.bard.

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Time Domain Reflectometry (TDR) and other in-situ and remote sensing dielectric methods for determining the soil water content had become standard in both research and practice in the last two decades. Limitations of existing dielectric methods in some soils, and introduction of new agricultural measurement devices or approaches based on soil dielectric properties mandate improved understanding of the relationship between the measured effective permittivity (dielectric constant) and the soil water content. Mounting evidence indicates that consideration must be given not only to the volume fractions of soil constituents, as most mixing models assume, but also to soil attributes and ambient temperature in order to reduce errors in interpreting measured effective permittivities. The major objective of the present research project was to investigate the effects of the soil geometrical attributes and interfacial processes (bound water) on the effective permittivity of the soil, and to develop a theoretical frame for improved, soil-specific effective permittivity- water content calibration curves, which are based on easily attainable soil properties. After initializing the experimental investigation of the effective permittivity - water content relationship, we realized that the first step for water content determination by the Time Domain Reflectometry (TDR) method, namely, the TDR measurement of the soil effective permittivity still requires standardization and improvement, and we also made more efforts than originally planned towards this objective. The findings of the BARD project, related to these two consequential steps involved in TDR measurement of the soil water content, are expected to improve the accuracy of soil water content determination by existing in-situ and remote sensing dielectric methods and to help evaluate new water content sensors based on soil electrical properties. A more precise water content determination is expected to result in reduced irrigation levels, a matter which is beneficial first to American and Israeli farmers, and also to hydrologists and environmentalists dealing with production and assessment of contamination hazards of this progressively more precious natural resource. The improved understanding of the way the soil geometrical attributes affect its effective permittivity is expected to contribute to our understanding and predicting capability of other, related soil transport properties such as electrical and thermal conductivity, and diffusion coefficients of solutes and gas molecules. In addition, to the originally planned research activities we also investigated other related problems and made many contributions of short and longer terms benefits. These efforts include: Developing a method and a special TDR probe for using TDR systems to determine also the soil's matric potential; Developing a methodology for utilizing the thermodielectric effect, namely, the variation of the soil's effective permittivity with temperature, to evaluate its specific surface area; Developing a simple method for characterizing particle shape by measuring the repose angle of a granular material avalanching in water; Measurements and characterization of the pore scale, saturation degree - dependent anisotropy factor for electrical and hydraulic conductivities; Studying the dielectric properties of cereal grains towards improved determination of their water content. A reliable evaluation of the soil textural attributes (e.g. the specific surface area mentioned above) and its water content is essential for intensive irrigation and fertilization processes and within extensive precision agriculture management. The findings of the present research project are expected to improve the determination of cereal grain water content by on-line dielectric methods. A precise evaluation of grain water content is essential for pricing and evaluation of drying-before-storage requirements, issues involving energy savings and commercial aspects of major economic importance to the American agriculture. The results and methodologies developed within the above mentioned side studies are expected to be beneficial to also other industrial and environmental practices requiring the water content determination and characterization of granular materials.
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Warrick, Arthur W., Gideon Oron, Mary M. Poulton, Rony Wallach, and Alex Furman. Multi-Dimensional Infiltration and Distribution of Water of Different Qualities and Solutes Related Through Artificial Neural Networks. United States Department of Agriculture, January 2009. http://dx.doi.org/10.32747/2009.7695865.bard.

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The project exploits the use of Artificial Neural Networks (ANN) to describe infiltration, water, and solute distribution in the soil during irrigation. It provides a method of simulating water and solute movement in the subsurface which, in principle, is different and has some advantages over the more common approach of numerical modeling of flow and transport equations. The five objectives were (i) Numerically develop a database for the prediction of water and solute distribution for irrigation; (ii) Develop predictive models using ANN; (iii) Develop an experimental (laboratory) database of water distribution with time; within a transparent flow cell by high resolution CCD video camera; (iv) Conduct field studies to provide basic data for developing and testing the ANN; and (v) Investigate the inclusion of water quality [salinity and organic matter (OM)] in an ANN model used for predicting infiltration and subsurface water distribution. A major accomplishment was the successful use of Moment Analysis (MA) to characterize “plumes of water” applied by various types of irrigation (including drip and gravity sources). The general idea is to describe the subsurface water patterns statistically in terms of only a few (often 3) parameters which can then be predicted by the ANN. It was shown that ellipses (in two dimensions) or ellipsoids (in three dimensions) can be depicted about the center of the plume. Any fraction of water added can be related to a ‘‘probability’’ curve relating the size of the ellipse (or ellipsoid) that contains that amount of water. The initial test of an ANN to predict the moments (and hence the water plume) was with numerically generated data for infiltration from surface and subsurface drip line and point sources in three contrasting soils. The underlying dataset consisted of 1,684,500 vectors (5 soils×5 discharge rates×3 initial conditions×1,123 nodes×20 print times) where each vector had eleven elements consisting of initial water content, hydraulic properties of the soil, flow rate, time and space coordinates. The output is an estimate of subsurface water distribution for essentially any soil property, initial condition or flow rate from a drip source. Following the formal development of the ANN, we have prepared a “user-friendly” version in a spreadsheet environment (in “Excel”). The input data are selected from appropriate values and the output is instantaneous resulting in a picture of the resulting water plume. The MA has also proven valuable, on its own merit, in the description of the flow in soil under laboratory conditions for both wettable and repellant soils. This includes non-Darcian flow examples and redistribution and well as infiltration. Field experiments were conducted in different agricultural fields and various water qualities in Israel. The obtained results will be the basis for the further ANN models development. Regions of high repellence were identified primarily under the canopy of various orchard crops, including citrus and persimmons. Also, increasing OM in the applied water lead to greater repellency. Major scientific implications are that the ANN offers an alternative to conventional flow and transport modeling and that MA is a powerful technique for describing the subsurface water distributions for normal (wettable) and repellant soil. Implications of the field measurements point to the special role of OM in affecting wettability, both from the irrigation water and from soil accumulation below canopies. Implications for agriculture are that a modified approach for drip system design should be adopted for open area crops and orchards, and taking into account the OM components both in the soil and in the applied waters.
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