Littérature scientifique sur le sujet « Transport des phonons »
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Articles de revues sur le sujet "Transport des phonons"
Liu, Yizhou, Yong Xu et Wenhui Duan. « Three-Dimensional Topological States of Phonons with Tunable Pseudospin Physics ». Research 2019 (31 juillet 2019) : 1–8. http://dx.doi.org/10.34133/2019/5173580.
Texte intégralManuel, Cristina, et Laura Tolos. « Transport Properties of Superfluid Phonons in Neutron Stars ». Universe 7, no 3 (5 mars 2021) : 59. http://dx.doi.org/10.3390/universe7030059.
Texte intégralPrasher, Ravi. « Thermal Transport Due to Phonons in Random Nano-particulate Media in the Multiple and Dependent (Correlated) Elastic Scattering Regime ». Journal of Heat Transfer 128, no 7 (4 janvier 2006) : 627–37. http://dx.doi.org/10.1115/1.2194036.
Texte intégralBin Mansoor, Saad, et Bekir Sami Yilbas. « Nonequilibrium cross-plane energy transport in aluminum–silicon–aluminum wafer ». International Journal of Modern Physics B 29, no 17 (23 juin 2015) : 1550112. http://dx.doi.org/10.1142/s021797921550112x.
Texte intégralLax, M., et W. Cai. « EFFECT OF NONEQUILIBRIUM PHONONS ON THE ELECTRON RELAXATION AND TRANSPORT ». International Journal of Modern Physics B 06, no 07 (10 avril 1992) : 975–1006. http://dx.doi.org/10.1142/s0217979292000529.
Texte intégralBao, Bengang, Fei Li et Xin Zhou. « Characteristics of acoustic phonon transport and thermal conductance in multi-frame graphene nanoribbons ». Modern Physics Letters B 32, no 26 (20 septembre 2018) : 1850307. http://dx.doi.org/10.1142/s0217984918503074.
Texte intégralBannov, N. A., V. V. Mitin et F. T. Vasko. « Modelling of Hot Acoustic Phonon Propagation in Two Dimensional Layers ». VLSI Design 6, no 1-4 (1 janvier 1998) : 197–200. http://dx.doi.org/10.1155/1998/79658.
Texte intégralChen, J., et Y. Liu. « Effect of out-of-plane acoustic phonons on the thermal transport properties of graphene ». Condensed Matter Physics 26, no 4 (2023) : 43603. http://dx.doi.org/10.5488/cmp.26.43603.
Texte intégralLuckyanova, M. N., J. Mendoza, H. Lu, B. Song, S. Huang, J. Zhou, M. Li et al. « Phonon localization in heat conduction ». Science Advances 4, no 12 (décembre 2018) : eaat9460. http://dx.doi.org/10.1126/sciadv.aat9460.
Texte intégralPrasher, Ravi S. « Mie Scattering Theory for Phonon Transport in Particulate Media ». Journal of Heat Transfer 126, no 5 (1 octobre 2004) : 793–804. http://dx.doi.org/10.1115/1.1795243.
Texte intégralThèses sur le sujet "Transport des phonons"
Davaasambuu, Jav, Friedrich Güthoff, Klaudia Hradil et Götz Eckold. « Phonons in demixing systems ». Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-188279.
Texte intégralDavaasambuu, Jav, Friedrich Güthoff, Klaudia Hradil et Götz Eckold. « Phonons in demixing systems ». Diffusion fundamentals 12 (2010) 109, 2010. https://ul.qucosa.de/id/qucosa%3A13916.
Texte intégralTavakoli-Ghinani, Adib. « Transport de phonons dans le régime quantique ». Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAY090/document.
Texte intégralThis PhD entitles Phonon heat transport in the quantum regime is based on the analysis of the thermal properties of confined systems at very low temperature.The context of this subject is putting the systems in two extreme conditions (low temperature and low dimensions) and understand the fundamental thermal properties coming from these limits.The studied samples during this PhD that are suspended structures (membrane or nanowire) are elaborated from amorphous silicon nitride.By lowering the temperature, the phonon characteristic lengths like the mean free path or the phonon dominant wavelength increase. When these characteristic lengths exceed lateral dimensions of the system, the boundary scattering will govern the thermal properties. In the boundary scattering, phonon transport goes from boundary limited scattering (Casimir regime) to ballistics regime (quantum limit). In this ballistic regime, the heat current can be expressed using the Landauer model. The thermal conductance is then expressed as: K=N_α q T where N_α is the number of populated vibrational modes, q=((π²k_B^2)T)⁄3h is the universal value of quantum of thermal conductance, and T is the transmission coefficient.In this work, thermal conductance measurements of suspended nanowires have been performed down to very low temperature. A measurement platform having an unprecedented sensitivity have been developed that can measure a variation of energy smaller than the attojoule. These new sensors allow the measurement of thermal properties of 1D phonon waveguide in the quantum regime of heat transport. We show that the transmission coefficient is the dominant factor that set the thermal conductance value. It depends on the dimension and the shape of the reservoirs, and the nature of the material in use rendering difficult the measurement of the quantum of thermal conductance. We show that in all of the SiN structures, the thermal transport could be dominated by low energy excitations that exist in amorphous solids (a-solids).The second important set of experiments concerns the specific heat. We have studied suspended the thermal properties of very thin SiN membranes that are thought to be 2D phonon cavities. We show that the temperature dependence of the specific heat departs from the quadratic behavior as expected at very low temperature. The true models giving a quantitative explanation of the results is still under consideration. The presence of tunneling two-level systems in amorphous materials could be one possible explanation for the high absolute value of specific heat that has been measured
Heron, Jean-Savin. « Transport des phonons à l'échelle du nanomètre ». Phd thesis, Grenoble 1, 2009. http://www.theses.fr/2009GRE10183.
Texte intégralTo understand the mechanisms of the heat transport at small length scales, we are fabricating complex nano-devices and measuring the thermal conductance of suspended silicon nanowires at cryogenic temperatures, principally by the 3 omega method. We demonstrate the dependance of the phonon transport to the dimensions and the geometry of these nanostructures. For nanowires with a length between 8 and 10 µm, and a section of 200x100 nm^2, we observe a deviation of the diffusive regime of Casimir below 5K, which can be explained by taking account the roughness of the surface of the nanowires. When the temperature decreases, the wave length of the phonons increases and ballistic collisions at the surface occur, implying an increase of the mean free path of the phonons, considered before as constant. Important mesoscopic effects on the phonons transport induced by the geometry of the nanowires have been measured for the first time. The presence of zigzag on the length of the wires blocks the current of phonons on a wide range of temperature, with as consequence an important decrease in the order of 40 % of the thermal conductance in comparison with straight nanowires. Experiments in parrallel on silcon NEMS have been performed at low temperatures, and compared with MEMS of same geometries. The mechanical behavior of silcon nanostructures at low scale is also aborded. At the end, first prototypes of zeptoJoules nanocalorimeters (10^-21 J) are presented, which allow thermal characterization of single mesoscopic object
Heron, Jean-Savin. « Transport des phonons à l'échelle du nanomètre ». Phd thesis, Grenoble 1, 2009. http://tel.archives-ouvertes.fr/tel-00461703.
Texte intégralHamzeh, Hani. « Résolution de l’équation de transport de Boltzmann pour les phonons et applications ». Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112371/document.
Texte intégralThis work is dedicated to the study of phonon transport and dynamics via the solution of Boltzmann Transport Equation (BTE) for phonons. The Monte Carlo stochastic method is used to solve the phonon BTE. A solution scheme taking into account all the different individual types of Normal and Umklapp processes which respect energy and momentum conservation rules is presented. The use of the common relaxation time approximation is thus avoided. A generalized Ridley theoretical scheme is used instead to calculate three-phonon scattering rates, with the Grüneisen constant as the only adjustable parameter. A method for deriving adequate adjustable anharmonic coupling coefficients is presented. Polarization branches with real nonlinear dispersion relations for transverse or longitudinal optical and acoustic phonons are considered. Zone-center longitudinal optical (LO) phonon lifetimes are extracted from the MC simulations for GaAs, InP, InAs, and GaSb. Decay channels contributions to zone-center LO phonon lifetimes are investigated using the calculated scattering rates. Vallée-Bogani’s channel is found to have a negligible contribution in all studied materials, notably GaAs. A comparison of phonons behavior between the different materials indicates that the previously reported LO phonon lifetimes in InAs and GaSb were quite underestimated in the literature. For the first time, to our knowledge, a coupling of two independent Monte Carlo solvers, one for charge carriers [PhD manuscript, E. TEA], and one for phonons, is undertaken. Hot phonon effect on charge carrier dynamics is studied. It is shown that the relaxation time approximation overestimates the phonon bottleneck effect. The phonon MC solver is extended to solve the phonon’s BTE in real space simultaneously with the reciprocal space, to study phonon and heat transport. Ridley’s generalized theoretical scheme is utilized again with simulation particles interacting directly together. Energy and momentum conservation laws are rigorously implemented. Umklapp processes effect on the total phonon momentum is thoroughly reproduced, as for the anharmonic interactions effect on resulting phonon directions. This is thanks to a procedure taking in consideration the respective vector directions during an interaction, instead of the randomization procedure usually used in literature. Our preliminary results show the limit of the analytic macroscopic heat conduction equation
Iskandar, Abdo. « Phonon Heat Transport and Photon-phonon Interaction in Nanostructures ». Thesis, Troyes, 2018. http://www.theses.fr/2018TROY0010.
Texte intégralIn this dissertation, we investigate phonon heat transport and phonon interaction with optical elementary excitations in nanostructures. In the first chapter, we present an introduction to the physics of phonons and optical elementary excitations in nanostructured materials. The second chapter provides a detailed description of the samples growth and fabrication procedures and the various characterization techniques used. In the third chapter, we demonstrate that phonons and photons of different momenta can be confined and interact with each other within the same nanostructure. In the fourth chapter, we present experimental evidence on the change of the phonon spectrum and vibrational properties of a bulk material through phonon hybridization mechanisms. We demonstrate that the phonon spectrum of a bulk material can be altered by hybridization between confined phonon modes in nanostructures introduced on the surface of the material and the underlying bulk phonon modes. Shape and size of the nanostructures made on the surface of the substrate have strong effects on the phonon spectrum of the bulk material itself. In the fifth chapter, we demonstrate that at low temperatures (below 4 K) the nanowire specific heat exhibits a clear contribution from an essentially two-dimensional crystal. We also demonstrate that transitions from specular to diffusive elastic transmission and then from diffusive elastic to diffusive inelastic transmission occur at the interface between nanowires and a bulk substrate as temperature increases. Perspectives include the control of bulk material thermal properties via surface nanostructuring
France-Lanord, Arthur. « Transport électronique et thermique dans des nanostructures ». Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS566/document.
Texte intégralThe perpetual shrinking of microelectronic devices makes it crucial to have a proper understanding of transport mechanisms at the nanoscale. While simple effects are now well understood in homogeneous materials, the understanding of nanoscale transport in heterosystems needs to be improved. For instance, the relationship between current, resistance, and heat flux in nanostructures remains to be clarified. In this context, the subject of the thesis is centered around the development and application of advanced numerical methods used to predict electronic and thermal conductivities of nanomaterials. This manuscript is divided into three parts. We begin with the parameterization of a classical interatomic potential, suitable for the description of multicomponent systems, in order to model the structural, vibrational, and thermal transport properties of both silica and silicon. A well-defined, reproducible, and automated optimization procedure is derived. As an example, we evaluate the temperature dependence of the Kapitza resistance between amorphous silica and crystalline silicon, and highlight the importance of an accurate description of the structure of the interface. Then, we have studied thermal transport in graphene supported on amorphous silica, by evaluating the mode-wise decomposition of thermal conductivity. The influence of hydroxylation on heat transport, as well as the significant role played by collective excitations of phonons, have come to light. Finally, electronic transport properties of graphene supported on quasi-two-dimensional silica, a system recently observed experimentally, have been investigated. The influence on transport properties of ripples in the graphene sheet or in the substrate, which often occur in samples and whose amplitude and wavelength can be controlled, has been evaluated. We have also modeled electrostatic gating, and its impact on electronic transport
Hamzeh, Hani. « Résolution de l'équation de transport de Boltzmann pour les phonons et applications ». Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00778705.
Texte intégralSantamore, Deborah Hannah Cross Michael Clifford. « Quantum transport and dynamics of phonons in mesoscopic systems / ». Diss., Pasadena, Calif. : California Institute of Technology, 2003. http://resolver.caltech.edu/CaltechETD:etd-05272003-152136.
Texte intégralLivres sur le sujet "Transport des phonons"
Gurevich, Vadim Lʹvovich. Transport in phonon systems. Amsterdam : North-Holland, 1986.
Trouver le texte intégralGurevich, V. L. Transport in phonon systems. Amsterdam : North-Holland, 1986.
Trouver le texte intégralL̕ubomír, Hrivnák, dir. Teória tuhých látok. 2e éd. Bratislava : Veda, vydavatel̕stvo Slovenskej akadémie vied, 1985.
Trouver le texte intégralZiman, J. M. Electrons and phonons : The theory of transport phenomena in solids. Oxford : Clarendon Press, 2001.
Trouver le texte intégralChen, Gang. Nanoscale energy transport and conversion : A parallel treatment of electrons, molecules, phonons, and photons. New York, NY : Oxford, 2004.
Trouver le texte intégralGang, Chen. Nanoscale energy transport and conversion : A parallel treatment of electrons, molecules, phonons, and photons. Oxford : Oxford University Press, 2005.
Trouver le texte intégralFrey, Martin. Scattering in nanoscale devices. Konstanz : Hartung-Gorre, 2010.
Trouver le texte intégralLi, Hai-Peng, et Rui-Qin Zhang. Phonon Thermal Transport in Silicon-Based Nanomaterials. Singapore : Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2637-0.
Texte intégralNeophytou, Neophytos. Theory and Simulation Methods for Electronic and Phononic Transport in Thermoelectric Materials. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38681-8.
Texte intégralYamamoto, Takahiro, Kazuyuki Watanabe et Satoshi Watanabe. Thermal transport of small systems. Sous la direction de A. V. Narlikar et Y. Y. Fu. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199533046.013.6.
Texte intégralChapitres de livres sur le sujet "Transport des phonons"
Jacoboni, Carlo. « Phonons ». Dans Theory of Electron Transport in Semiconductors, 49–68. Berlin, Heidelberg : Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-10586-9_5.
Texte intégralSrivastava, Gyaneshwar P. « Phonons and Thermal Transport in Nanocomposites ». Dans The Physics of Phonons, 259–94. 2e éd. Boca Raton : CRC Press, 2022. http://dx.doi.org/10.1201/9781003141273-9.
Texte intégralSols, F. « Dissipative Transport in Nanostructures : A Many-Electron Approach ». Dans Phonons in Semiconductor Nanostructures, 479–87. Dordrecht : Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1683-1_46.
Texte intégralSrivastava, Gyaneshwar P. « Phonons and Thermal Transport in Impure and Mixed Crystals ». Dans The Physics of Phonons, 319–42. 2e éd. Boca Raton : CRC Press, 2022. http://dx.doi.org/10.1201/9781003141273-11.
Texte intégralNoguchi, H., T. Takamasu, N. Miura, J. P. Leburton et H. Sakaki. « Theoretical and Experimental Study of Electron Transport in One-Dimensional Coupled Quantum Boxes ». Dans Phonons in Semiconductor Nanostructures, 471–78. Dordrecht : Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1683-1_45.
Texte intégralBannov, N. A., V. V. Mitin et M. A. Stroscio. « Localized Acoustic Phonons in Low Dimensional Structures ». Dans Quantum Transport in Ultrasmall Devices, 191–200. Boston, MA : Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1967-6_9.
Texte intégralLukkarinen, Jani. « Kinetic Theory of Phonons in Weakly Anharmonic Particle Chains ». Dans Thermal Transport in Low Dimensions, 159–214. Cham : Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29261-8_4.
Texte intégralStock, B., M. Fieseler et R. G. Ulbrich. « Transport Properties of Tera-Hertz Phonons in Galliumarsenide ». Dans Proceedings of the 17th International Conference on the Physics of Semiconductors, 1177–80. New York, NY : Springer New York, 1985. http://dx.doi.org/10.1007/978-1-4615-7682-2_266.
Texte intégralVast, Nathalie, Jelena Sjakste, Gaston Kané et Virginie Trinité. « Electronic Transport : Electrons, Phonons and Their Coupling within the Density Functional Theory ». Dans Simulation of Transport in Nanodevices, 31–96. Hoboken, NJ, USA : John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781118761793.ch2.
Texte intégralRuckh, R., et E. Sigmund. « Quasi Resonant Transport Behaviour of Nonequilibrium Phonons in Insulating Crystals ». Dans Phonon Scattering in Condensed Matter V, 278–80. Berlin, Heidelberg : Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82912-3_81.
Texte intégralActes de conférences sur le sujet "Transport des phonons"
Roberts, N. A., et D. G. Walker. « Phonon Transport in Asymmetric Sawtooth Nanowires ». Dans ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44341.
Texte intégralDechaumphai, Edward, et Renkun Chen. « Modeling of Thermal Transport in Phononic Crystals Using Finite Difference Time Domain Method ». Dans ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65477.
Texte intégralSinha, S., E. Pop et K. E. Goodson. « A Split-Flux Model for Phonon Transport Near Hotspots ». Dans ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61949.
Texte intégralZuckerman, Neil, et Jennifer R. Lukes. « Atomistic Visualization of Ballistic Phonon Transport ». Dans ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32674.
Texte intégralMasao, Yusuke, et Mitsuhiro Matsumoto. « Direct Simulation of the Nonlinear Boltzmann Transport Equation for Phonons ». Dans ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44060.
Texte intégralMiller, John, Wanyoung Jang et Chris Dames. « Thermal Rectification by Ballistic Phonons ». Dans ASME 2008 3rd Energy Nanotechnology International Conference collocated with the Heat Transfer, Fluids Engineering, and Energy Sustainability Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/enic2008-53064.
Texte intégralSingh, Dhruv, Jayathi Y. Murthy et Timothy S. Fisher. « Frequency Resolved Phonon Transport in Si/Ge Nanocomposites ». Dans ASME 2011 Pacific Rim Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/ipack2011-52244.
Texte intégralPrasher, Ravi S. « Scattering of Phonons by Nano and Micro Particles ». Dans ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59347.
Texte intégralShi, Li, Sergei Plyasunov, Adrian Bachtold, Paul L. McEuen et Arunava Majumdar. « Scanning Thermal Microscopy of Carbon Nanotubes ». Dans ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1453.
Texte intégralPark, Jungkyu, Eduardo B. Farfán, Christian Enriquez, Nicholas Kinder et Matthew Greeson. « Thermal Transport in Thorium Dioxide ». Dans ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71614.
Texte intégralRapports d'organisations sur le sujet "Transport des phonons"
Baowen, Li. Managing Phonon Transport by Core/Shell Nanowires. Fort Belvoir, VA : Defense Technical Information Center, novembre 2012. http://dx.doi.org/10.21236/ada570448.
Texte intégralZiade, Elbara, Elbara Ziade, Khalid Hattar et Khalid Hattar. Tunable Thermal Transport across Interfaces via Phonon Engineering. Office of Scientific and Technical Information (OSTI), novembre 2019. http://dx.doi.org/10.2172/1763287.
Texte intégralSarma, Sankar D. Electron-Phonon Interaction, Transport and Ultrafast Processes in Semiconductor Microstructures. Fort Belvoir, VA : Defense Technical Information Center, août 1992. http://dx.doi.org/10.21236/ada255297.
Texte intégralDas Sarma, Sankar. Electron-Phonon Interaction, Transport and Ultrafast Processes in Semiconductor Microstructures. Fort Belvoir, VA : Defense Technical Information Center, août 1992. http://dx.doi.org/10.21236/ada255723.
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