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Artykuły w czasopismach na temat „Disorder - Single Crystalline Oxides”

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Data publikacji: 7 września 2023

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1

Spinolo, G., and U. Anselmi Tamburini. "Stacking Faults in Ca(OH)2 Produced by Vapour Phase Hydration." Zeitschrift für Naturforschung A 40, no. 1 (1985): 73–78. http://dx.doi.org/10.1515/zna-1985-0113.

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The diffraction profiles of a thin single crystal with stacking faults were calculated with the theory of diffraction of a one-dimensionally disordered crystal (Kakinoki, Komura, Allegra) by including the effect of crystallite thickness. The results hold for generalized close packed structures.An application to calcium hydroxide is discussed: the stacking faults significantly contribute to the disorder of poorly crystalline forms of Ca(OH)2 produced by reaction of calcium oxide with water vapour at room temperature.

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2

Rupp, Jennifer L. M., Barbara Scherrer, Julia Martynczuk, and Ludwig J. Gauckler. "Self-Limited to Parabolic Grain Growth Kinetics in Metal Oxide Thin Films." Materials Science Forum 715-716 (April 2012): 333. http://dx.doi.org/10.4028/www.scientific.net/msf.715-716.333.

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Distinctive microstructure engineering of amorphous to nanocrystalline electroceramic thin films is of high relevance for integration in low to high temperature operating MEMS-devices. Up to now, kinetic rules of nucleation, crystallization and grain growth of precipitation-based ceramic thin films are unknown. In this study, general rules for the crystallization and grain growth kinetics of a pure single-phase metal oxide thin film with only one kind of cation, i.e. ceria, made by spray pyrolysis from a precursor with one single organic solvent is discussed [1,. The near-and long range disord

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3

Khanvilkar, M. B., A. K. Nikumbh, S. M. Patange, et al. "Structural, electrical and magnetic properties of substituted pyrochlore oxide nanoparticles synthesized by the co-precipitation method." Physics and Chemistry of Solid State 22, no. 2 (2021): 353–71. http://dx.doi.org/10.15330/pcss.22.2.353-371.

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Five substituted pyrochlore nanooxides such as Nd1.9Ho0.1Zr1.8Ce0.2O7, La1.95Ce0.05Zr0.29Ce1.71O7, Y1.79Pr0.21Ru1.99Pr0.01O7, Dy1.9Yb0.1Mn1.93Cu0.07O7 and Dy1.99Sr0.01Sn2O7 were synthesized by coprecipitation method. These precursors were monitored by thermal studies (TGA-DTA). The prepared nanosized substituted pyrochlore oxides were characterized by EDS, XRD, SEM, TEM, d. c. electrical conductivity, Thermoelectric power, Hall effect measurement, dielectric properties and magnetization measurements. XRD confirmed the formation of a single phase crystalline substituted pyrochlores with a cubic

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4

Welberry, Richard, and Darren Goossens. "Local order in wüstite. Fe1-xO, using a PDF approach." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C873. http://dx.doi.org/10.1107/s2053273314091268.

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Many minerals (and materials more widely) show evidence of strong and complex local structural ordering. This local ordering can affect a material's mechanical properties, its transport properties (for example, how vacancies relate to oxygen transport through the structure) and its thermodynamics, and so is clearly of prime importance. For crystalline materials the analysis of single crystal diffuse scattering (SCDS) is the most definitive way of determining local structure but for many minerals (and materials more widely) single crystals of a sufficient size for such studies are often not rea

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5

Ling, Chris. "Modulated order in ionic conductors: a fine line between helping and hindering." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C228. http://dx.doi.org/10.1107/s205327331409771x.

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"Solid-state ionic conduction relies on essentially conflicting structural properties: long-range crystalline order, to provide structural stability (as fuel cell membranes, battery cathodes etc.); and short-range disorder, to provide smooth conduction pathways without deep local energy minima that could trap the conducting species. Materials that combine these features are generally metastable, and prone to ordering into complex modulated structured that can only be described in (3+n) dimensions using the superspace formalism. Such ordering would normally be expected to seriously compromise c

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6

Sarkar, Toton, Sani Kundu, Gurupada Ghorai, Pratap Kumar Sahoo, and Ashis Bhattacharjee. "Structural, spectroscopic and morphology studies on green synthesized ZnO nanoparticles." Advances in Natural Sciences: Nanoscience and Nanotechnology 14, no. 3 (2023): 035001. http://dx.doi.org/10.1088/2043-6262/acd8b6.

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Abstract Zinc oxide nanoparticles (ZnO NPs) were synthesised using Tabernaemontana divaricata flower extract (TFE) in different weight percentages by facile, eco-friendly and cost-effective green synthesis method. Formation and structure of the ZnO NPs were studied by powder XRD, FT−IR, Raman and TEM studies. The crystals formed are of hexagonal wurtzite structure with biological functional groups attached. Average crystallite size of the ZnO NPs (17.5−23.3 nm) was obtained from the analysis of powder XRD data which increased with increase of TFE amount while the estimated values of dislocatio

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7

Chen, Yancheng, Yingjie Lu, Xun Yang, et al. "Bandgap engineering of Gallium oxides by crystalline disorder." Materials Today Physics 18 (May 2021): 100369. http://dx.doi.org/10.1016/j.mtphys.2021.100369.

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8

Kim, Shin-Ik, Hyung-Jin Choi, Gwangyeob Lee, et al. "3D architectures of single-crystalline complex oxides." Materials Horizons 7, no. 6 (2020): 1552–57. http://dx.doi.org/10.1039/d0mh00292e.

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We proposed 3D architectures of complex oxides as a way to derive novel properties: various 3D shapes were formed by self-shaped free-standing membranes, and curvature-induced polarization in an otherwise nonpolar material was observed.

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9

Szlawska, M., and D. Kaczorowski. "Disorder-driven low-temperature anomalies in single-crystalline Ce2Co0.4Rh0.4Si3.2." Journal of Physics: Condensed Matter 25, no. 25 (2013): 255601. http://dx.doi.org/10.1088/0953-8984/25/25/255601.

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10

Yeom, Eun Joo, Seong Sik Shin, Woon Seok Yang, et al. "Controllable synthesis of single crystalline Sn-based oxides and their application in perovskite solar cells." Journal of Materials Chemistry A 5, no. 1 (2017): 79–86. http://dx.doi.org/10.1039/c6ta08565b.

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11

Peng, Bin, Ren-Ci Peng, Yong-Qiang Zhang, et al. "Phase transition enhanced superior elasticity in freestanding single-crystalline multiferroic BiFeO3 membranes." Science Advances 6, no. 34 (2020): eaba5847. http://dx.doi.org/10.1126/sciadv.aba5847.

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The integration of ferroic oxide thin films into advanced flexible electronics will bring multifunctionality beyond organic and metallic materials. However, it is challenging to achieve high flexibility in single-crystalline ferroic oxides that is considerable to organic or metallic materials. Here, we demonstrate the superior flexibility of freestanding single-crystalline BiFeO3 membranes, which are typical multiferroic materials with multifunctionality. They can endure cyclic 180° folding and have good recoverability, with the maximum bending strain up to 5.42% during in situ bending under s

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12

Szlawska, M., and D. Kaczorowski. "Disorder-driven non-Fermi liquid behavior in single-crystalline Ce2Co0.8Si3.2." Journal of Physics: Condensed Matter 26, no. 1 (2013): 016004. http://dx.doi.org/10.1088/0953-8984/26/1/016004.

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13

Fomenko, V. S. "Electronic work function of sintered and single-crystalline high-temperature superconducting oxides." Powder Metallurgy and Metal Ceramics 32, no. 2 (1993): 178–81. http://dx.doi.org/10.1007/bf00560050.

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14

Popescu, Madalina, Roxana Piticescu, Eugeniu Vasile, et al. "The Influence of Synthesis Parameters on FeO(OH) / Fe2O3 Formation by Hydrothermal Techniques." Zeitschrift für Naturforschung B 65, no. 8 (2010): 1024–32. http://dx.doi.org/10.1515/znb-2010-0808.

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In this paper, a hydrothermal method of high-pressure and low-temperature synthesis conditions is presented as a simple single-step technique to obtain crystalline nanoparticles of iron oxides. The aim of this work has been to demonstrate the influence of the main synthesis parameters on the formation of nanosized Fe2O3 particles using statistical methods and to establish the most significant effects. Based on mathematical pre-modeling calculations, the best reaction conditions for the hydrothermal process have been chosen, and controlled crystalline nanostructures of iron oxides could be prep

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15

Liu, Qing, Youwei Yan, Xiangcheng Chu, Yiling Zhang, Lihong Xue, and Wuxing Zhang. "Graphene-induced growth of single crystalline Sb2MoO6sheets and their sodium storage performance." J. Mater. Chem. A 5, no. 40 (2017): 21328–33. http://dx.doi.org/10.1039/c7ta07111f.

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Pure and single crystalline Sb<sub>2</sub>MoO<sub>6</sub>sheets can be hydrothermally synthesizedviathe induction of graphene oxides, and the Sb<sub>2</sub>MoO<sub>6</sub>/RGO composite exhibits excellent cyclability and rate performance as the anode in a sodium ion battery.

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16

Ebbinghaus, Stefan G., Rosiana Aguiar, Anke Weidenkaff, Stefan Gsell, and Armin Reller. "Topotactical growth of thick perovskite oxynitride layers by nitridation of single crystalline oxides." Solid State Sciences 10, no. 6 (2008): 709–16. http://dx.doi.org/10.1016/j.solidstatesciences.2007.03.011.

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17

Sen, P., J. Akhtar, and F. M. Russell. "MeV ion-induced movement of lattice disorder in single crystalline silicon." Europhysics Letters (EPL) 51, no. 4 (2000): 401–6. http://dx.doi.org/10.1209/epl/i2000-00508-7.

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18

QIAN, H. X., W. ZHOU, and H. Y. ZHENG. "RIPPLE FORMATION ON InP SURFACE IRRADIATED WITH FEMTOSECOND LASER." International Journal of Nanoscience 04, no. 04 (2005): 779–84. http://dx.doi.org/10.1142/s0219581x0500370x.

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Single crystalline InP was ablated with linearly p-polarized femtosecond laser in air. Ripples with orientation parallel to the laser polarization direction were formed at low laser fluence. Analyses by EDX reveal In oxides and P oxides on the surface. Micro Raman spectroscopy of the laser irradiated surface indicates presence of stresses and possible formation of InP nanocrystals due to the femtosecond laser irradiation.

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19

Kang, Liping, Lingli Wang, Haiyan Wang, Xiaodong Zhang, and Yongqiang Wang. "Preparation and Performance of Gallium Nitride Powders with Preferred Orientation." MATEC Web of Conferences 142 (2018): 01009. http://dx.doi.org/10.1051/matecconf/201814201009.

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The paper prepared the III-V semiconductor, hexagonal wurtzite Gallium nitride powders by calcining a gallium oxide in flowing ammonia above 900 °C (1173K). Because of the solid-state reaction process that the gallium oxide transformed to GaN through solid-state gallium oxynitrides (GaOxNy) as inter-mediates, the Gallium nitride powders which are agglomerates of tens nanometers flake crystallites retain the rod shape and grain size of raw gallium oxide and have slight (002) plane preferred orientation. The near-edge emission of Gallium nitride at 346 nm has a blue shift of 187 meV attributed t

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20

Kudo, Kohei, Yasunari Hamazaki, Shinya Yamada, Satoshi Abo, Yoshihiro Gohda, and Kohei Hamaya. "Great Differences between Low-Temperature Grown Co2FeSi and Co2MnSi Films on Single-Crystalline Oxides." ACS Applied Electronic Materials 1, no. 11 (2019): 2371–79. http://dx.doi.org/10.1021/acsaelm.9b00546.

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21

Kato, Kazumi, Feng Dang, Ken-ichi Mimura, et al. "Nano-sized cube-shaped single crystalline oxides and their potentials; composition, assembly and functions." Advanced Powder Technology 25, no. 5 (2014): 1401–14. http://dx.doi.org/10.1016/j.apt.2014.02.006.

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22

Jesse, Stephen, Qian He, Andrew R. Lupini, et al. "Atomic-Level Sculpting of Crystalline Oxides: Toward Bulk Nanofabrication with Single Atomic Plane Precision." Small 11, no. 44 (2015): 5895–900. http://dx.doi.org/10.1002/smll.201502048.

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23

Minami, Takaya, Hiroyasu Sato, and Shinya Matsumoto. "Macroscopic crystalline deformation in an organic dye during reversible phase transition caused by alkyl disorder." CrystEngComm 20, no. 19 (2018): 2644–47. http://dx.doi.org/10.1039/c8ce00465j.

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24

Ou, Limin, Shengheng Nong, Ruoxi Yang, et al. "Multi-Role Surface Modification of Single-Crystalline Nickel-Rich Lithium Nickel Cobalt Manganese Oxides Cathodes with WO3 to Improve Performance for Lithium-Ion Batteries." Nanomaterials 12, no. 8 (2022): 1324. http://dx.doi.org/10.3390/nano12081324.

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Compared with the polycrystalline system, the single-crystalline ternary cathode material has better cycle stability because the only primary particles without grain boundaries effectively alleviate the formation of micro/nanocracks and retain better structural integrity. Therefore, it has received extensive research attention. There is no consistent result whether tungsten oxide acts as doping and/or coating from the surface modification of the polycrystalline system. Meanwhile, there is no report on the surface modification of the single-crystalline system by tungsten oxide. In this paper, m

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25

Szlawska, Maria, Daniel Gnida, Piotr Ruszała, et al. "Antiferromagnetic Ordering and Transport Anomalies in Single-Crystalline CeAgAs2." Materials 13, no. 17 (2020): 3865. http://dx.doi.org/10.3390/ma13173865.

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Single crystals of the ternary cerium arsenide CeAgAs2 were grown by chemical vapor transport. They were studied by means of x-ray diffraction, magnetization, heat capacity and electrical transport measurements. The experimental research was supplemented with electronic band structure calculations. The compound was confirmed to order antiferromagnetically at the Néel temperature of 4.9 K and to undergo metamagnetic transition in a field of 0.5 T at 1.72 K. The electrical resistivity shows distinct increase at low temperatures, which origin is discussed in terms of pseudo-gap formation in the d

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26

Shao, Jian, Hao Liu, Kai Zhang, et al. "Emerging single-phase state in small manganite nanodisks." Proceedings of the National Academy of Sciences 113, no. 33 (2016): 9228–31. http://dx.doi.org/10.1073/pnas.1609656113.

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In complex oxides systems such as manganites, electronic phase separation (EPS), a consequence of strong electronic correlations, dictates the exotic electrical and magnetic properties of these materials. A fundamental yet unresolved issue is how EPS responds to spatial confinement; will EPS just scale with size of an object, or will the one of the phases be pinned? Understanding this behavior is critical for future oxides electronics and spintronics because scaling down of the system is unavoidable for these applications. In this work, we use La0.325Pr0.3Ca0.375MnO3 (LPCMO) single crystalline

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27

Wright, Andrew J., Qingyang Wang, Chongze Hu, Yi-Ting Yeh, Renkun Chen, and Jian Luo. "Single-phase duodenary high-entropy fluorite/pyrochlore oxides with an order-disorder transition." Acta Materialia 211 (June 2021): 116858. http://dx.doi.org/10.1016/j.actamat.2021.116858.

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28

Gurvitch, M., A. T. Fiory, L. S. Schneemeyer, R. T. Cava, G. P. Espinosa, and J. V. Waszczak. "Resistivities of ceramic and single-crystalline superconducting oxides to 1100K: What do they tell us?" Physica C: Superconductivity 153-155 (June 1988): 1369–70. http://dx.doi.org/10.1016/0921-4534(88)90325-5.

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29

Zachara, John M., James K. Fredrickson, Shu-Mei Li, David W. Kennedy, Steven C. Smith, and Paul L. Gassman. "Bacterial reduction of crystalline Fe (super 3+) oxides in single phase suspensions and subsurface materials." American Mineralogist 83, no. 11-12 Part 2 (1998): 1426–43. http://dx.doi.org/10.2138/am-1997-11-1232.

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30

Zachara, John M., James K. Fredrickson, Shu-Mei Li, David W. Kennedy, Steven C. Smith, and Paul L. Gassman. "Bacterial reduction of crystalline Fe (super 3+) oxides in single phase suspensions and subsurface materials." American Mineralogist 83, no. 11-12 Part 2 (1998): 1426–43. http://dx.doi.org/10.2138/am-1998-11-1232.

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31

Liberka, Michal, Jedrzej Kobylarczyk, and Robert Podgajny. "Structural Disorder in High-Spin {CoII9WV6} (Core)-[Pyridine N-Oxides] (Shell) Architectures." Molecules 25, no. 2 (2020): 251. http://dx.doi.org/10.3390/molecules25020251.

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The combinations of Co(II), octacyanidotungstate(V), and monodentate pyridine N-oxide (pyNO) or 4-phenylpyridine N-oxide (4-phpyNO) led to crystallization of novel crystalline phases {CoII[CoII8(pyNO)12(MeOH)12][WV(CN)8]6} (1) and {CoII[CoII8(4-phpyNO)7(MeOH)17][WV(CN)8]6}·7MeOH·(4-phpyNO)3 (2). In both architectures, metal–cyanide clusters are coordinated by N-oxide ligands in a simple monodentate manner to give the spherical objects of over 1 nm core diameter and about 2.2 nm (1) and 3 nm (2) of the total diameter, terminated with the aromatic rings. The supramolecular architecture is domina

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32

Huang, Xiang Hong, Jun Qiao, and Qian Feng Zhang. "Structure and Thermo-Chemical Stability of Sr-Fe-Co-O Mixed Metal Oxides." Advanced Materials Research 549 (July 2012): 193–97. http://dx.doi.org/10.4028/www.scientific.net/amr.549.193.

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SrFexCo0.5Oδ(x=0.5, 0.75, 1.0, 1.25) mixed metal oxides were synthesized by the citrate method. The structure and thermo-chemical stability of the obtained SrFexCo0.5Oδpowders were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD results show that the SrFexCo0.5Oδpowders are composed of perovskite-type cubic structure at both room temperature and high temperature. The crystalline phases of the SrFexCo0.5Oδpowders are dependent on the content of Fe and SrFe0.5Co0.5O3, SrFe0.19Co081O2.78are the main crystalline phases. The powders have good thermo-chemical stab

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33

Gimenez-Pinto, Vianney, and Fangfu Ye. "Patterning order and disorder with an angle: modeling single-layer dual-phase nematic elastomer ribbons." RSC Advances 9, no. 16 (2019): 8994–9000. http://dx.doi.org/10.1039/c8ra09375j.

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We study the rich actuation variety displayed by elastomers that combine well-defined isotropic regions and liquid crystalline regions. Design factors for actuation include orientation of director and pattern, domain-size and sample-size.

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34

Bruckner, Barbara, Peter Bauer, and Daniel Primetzhofer. "Neutralization of slow helium ions scattered from single crystalline aluminum and tantalum surfaces and their oxides." Surface Science 691 (January 2020): 121491. http://dx.doi.org/10.1016/j.susc.2019.121491.

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35

Yushchuk, S. I., S. O. Yuryev, and N. T. Pokladok. "Growing of Thick Single-Crystalline La-Substituted Yttrium-Iron Garnet Films with Reproducible Parameters." Ukrainian Journal of Physics 64, no. 3 (2019): 245. http://dx.doi.org/10.15407/ujpe64.3.245.

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Basic principles of growing the thick (35–60 мm) single-crystalline La-substituted yttrium-iron garnet (Y3−xLaxFe5O12, La :YIG) films with reproducible parameters have been formulated. La :YIG films are grown on gallium-gadolinium garnet (Gd3Ga5O12) substrates from a supercooled melt-solution (MS) consisting of Y2O3, La2O3, and Fe2O3 oxides and the PbO–B2O3 solvent. In order to minimize the implantation of Pb2+ ions into the films, which degrades the film quality, the epitaxy has to be performed at high temperatures and a low MS supercooling. It is found that, in order to maintain a constant g

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36

Zhang, H. B., J. Zhang, Y. C. Zhou, Y. W. Bao, and M. S. Li. "Synthesis of AlN nanowires by nitridation of Ti3Si0.9Al0.1C2 solid solution." Journal of Materials Research 22, no. 3 (2007): 561–64. http://dx.doi.org/10.1557/jmr.2007.0072.

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This paper describes a new method to synthesize AlN nanowires by the nitridation of Ti3Si0.9Al0.1C2 solid solution. Single-crystalline AlN nanowires with the hexagonal wurtzite structure can be easily prepared using this method. In particular, the resulting AlN nanowires display a new growth orientation of 〈1011〉 besides 〈1000〉 and 〈0001〉. This work indicates that MN+1AXN compounds are promising raw reactants to synthesize one-dimensional (1D) nanostructures of nitrides and oxides.

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37

Yu, Feng, Yi Wang, Cong Guo, et al. "Spinel LiMn2O4 Cathode Materials in Wide Voltage Window: Single-Crystalline versus Polycrystalline." Crystals 12, no. 3 (2022): 317. http://dx.doi.org/10.3390/cryst12030317.

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Single-crystal (SC) layered oxides as cathodes for Li-ion batteries have demonstrated better cycle stability than their polycrystalline (PC) counterparts due to the restrained intergranular cracking formation. However, there are rare reports on comparisons between single-crystal LiMn2O4 (SC-LMO) and polycrystalline LiMn2O4 (PC-LMO) spinel cathodes for Li-ion storage. In this work, the Li-ion storage properties of spinel LiMn2O4 single-crystalline and polycrystalline with similar particle sizes were investigated in a wide voltage window of 2–4.8 V vs. Li/Li+. The SC-LMO cathode exhibited a spec

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38

Fujiwara, Takumi, Takayuki Honma, S. Mizuno, N. Iwafuchi, Yasuhiko Benino, and Takayuki Komatsu. "Order/Disorder Hybrid Structures in Photonic Glass Materials." Advanced Materials Research 11-12 (February 2006): 53–56. http://dx.doi.org/10.4028/www.scientific.net/amr.11-12.53.

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Investigations for space-selected structure ordering from nano-particles to single-crystal patterning in glasses will be described. Transparent crystallization in glass must be the best material solution to obtain novel functional glasses with a permanent second-order optical nonlinearity. We focus on the new functions created by structure ordering in glass by means of laser micro-fabrication for space-selected crystallization. Two topics in our recent experimental results of space-selected structure ordering in glass will be presented as follows: 1) Single crystalline patterning by atom heat

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39

Uhrmacher, Michael, and Klaus-Peter Lieb. "Phase Transitions in Oxides Studied by Perturbed Angular Correlation Spectroscopy." Zeitschrift für Naturforschung A 55, no. 1-2 (2000): 90–104. http://dx.doi.org/10.1515/zna-2000-1-217.

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Radioactive atoms located on cation sites in oxide matrices can be used to monitor phase transitions by measuring the electric or magnetic hyperfine interactions by means of Perturbed Angular Correlations spectroscopy. The article illustrates three types of phase transitions studied with 111In tracers and their daughter nuclei 111Cd, namely magnetic, structural and REDOX phase transitions in binary and ternary polycrystalline or single-crystalline oxides. In this context, we also discuss the question of identifying the probes' lattice site(s), the scaling of the Electric Field Gradients in oxi

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40

Malowney, J., N. Mestres, X. Borrise, et al. "Dual Function Polyvinyl Alcohol Based Oxide Precursors for Nanoimprinting and Electron Beam Lithography." MRS Proceedings 1547 (2013): 75–80. http://dx.doi.org/10.1557/opl.2013.679.

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ABSTRACTOrdered arrays of crystalline complex oxides nanostructures were synthesized onto single crystal insulating substrates using aqueous polyvinyl alcohol based electron beam resist precursors. The irradiated zones are insoluble in water (negative-tone resist) due to the electron induced cross linking of polyvinyl alcohol. The subsequent high temperature treatment of the developed precursor samples leads to the formation of ordered arrays of nanodots for low irradiation doses. For high irradiation dosages, epitaxially and oriented nanowires are obtained. These same precursors were shown to

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Ying, Tianping, Yueqiang Gu, Xiao Chen, et al. "Anderson localization of electrons in single crystals: LixFe7Se8." Science Advances 2, no. 2 (2016): e1501283. http://dx.doi.org/10.1126/sciadv.1501283.

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Anderson (disorder-induced) localization, proposed more than half a century ago, has inspired numerous efforts to explore the absence of wave diffusions in disordered media. However, the proposed disorder-induced metal-insulator transition (MIT), associated with the nonpropagative electron waves, has hardly been observed in three-dimensional (3D) crystalline materials, let alone single crystals. We report the observation of an MIT in centimeter-size single crystals of LixFe7Se8induced by lattice disorder. Both specific heat and infrared reflectance measurements reveal the presence of considera

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Heon, Jeon Byeong, Jeong Hoon Son, and Dong Sik Bae. "Synthesis and Characterization of TiO₂ Doped CeO₂ Nanopowders by a Hydrothermal Process." Journal of Nano Research 47 (May 2017): 49–53. http://dx.doi.org/10.4028/www.scientific.net/jnanor.47.49.

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Hydrothermal processes have the potential for the direct preparation of crystalline ceramic powders and offer a low-temperature alternative to conventional powder synthesis techniques in the production of oxide powders. These processes can produce fine, high-purity, stoichiometric particles of single and multi-component metal oxides. Furthermore, if process conditions such as solute concentration, reaction temperature, reaction time and the type of solvent are carefully controlled, the desired shape and size of particles can be produced. Uniform distribution of the particles is key for optimal

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Ginsbach, A., G. Adrian, R. Schneider, et al. "Electrical and structural properties of YBa2Cu3O7 films on poly and single crystalline oxides of Cu and Ni." Physica C: Superconductivity 185-189 (December 1991): 2111–12. http://dx.doi.org/10.1016/0921-4534(91)91180-c.

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da Silva, Margarete Soares, Alberto A. Cavalheiro, Maria Aparecida Zaghete, et al. "Parameters Optimization of Heat Treatment for Obtaining Luminescent PZT Powders." Materials Science Forum 805 (September 2014): 519–24. http://dx.doi.org/10.4028/www.scientific.net/msf.805.519.

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Low crystalline PZT powder samples were successfully synthesized using polymeric precursor method and slow decomposition steps. The polymeric resin precursor was thermal treated in a muffle type oven varying the temperature from 250 °C to 700 °C and the time from 3 to 24 hours in order to investigate the order/disorder mechanism toward the amorphous powders. Powder samples with low crystalline phases were obtained at lower temperatures and long time of thermal treatment, demonstrating a kinetic dependence for organic removal and a thermodynamic barrier for crystallization processes. Through XR

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Guo, D. Z., K. Yu-Zhang, A. Gloter, G. M. Zhang, and Z. Q. Xue. "Synthesis and characterization of tungsten oxide nanorods." Journal of Materials Research 19, no. 12 (2004): 3665–70. http://dx.doi.org/10.1557/jmr.2004.0469.

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Single crystalline nanorods (15–200 nm in diameter and hundreds nanometers in length) have been formed on the carbon-covered W wires by simple electric heating under a vacuum of 5 × 10−4 Pa. The chemical composition and crystalline structure of the nanorods were carefully investigated by various characterization techniques such as scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, energy dispersive x-ray spectroscopy and electron energy loss spectroscopy. After ruling out any possible existence of carbon nanotubes (CNTs), tungsten carbide, W–Fe alloying, and fo

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Vasilopoulou, Maria, Ermioni Polydorou, Antonios M. Douvas, Leonidas C. Palilis, Stella Kennou, and Panagiotis Argitis. "Annealing-free highly crystalline solution-processed molecular metal oxides for efficient single-junction and tandem polymer solar cells." Energy & Environmental Science 8, no. 8 (2015): 2448–63. http://dx.doi.org/10.1039/c5ee01116g.

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Dong, Guohua, Suzhi Li, Mouteng Yao, et al. "Super-elastic ferroelectric single-crystal membrane with continuous electric dipole rotation." Science 366, no. 6464 (2019): 475–79. http://dx.doi.org/10.1126/science.aay7221.

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Ferroelectrics are usually inflexible oxides that undergo brittle deformation. We synthesized freestanding single-crystalline ferroelectric barium titanate (BaTiO3) membranes with a damage-free lifting-off process. Our BaTiO3 membranes can undergo a ~180° folding during an in situ bending test, demonstrating a super-elasticity and ultraflexibility. We found that the origin of the super-elasticity was from the dynamic evolution of ferroelectric nanodomains. High stresses modulate the energy landscape markedly and allow the dipoles to rotate continuously between the a and c nanodomains. A contin

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WANG, ZHONG LIN, and ZHENGWEI PAN. "NANOBELTS OF SEMICONDUCTIVE OXIDES: A STRUCTURALLY AND MORPHOLOGICALLY CONTROLLED NANOMATERIALS SYSTEM." International Journal of Nanoscience 01, no. 01 (2002): 41–51. http://dx.doi.org/10.1142/s0219581x02000024.

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We have developed a simple and economic technique for synthesis of one-dimensional nanobelt structures of semiconductive oxides such as ZnO, SnO 2, In 2 O 3, CdO, Ga 2 O 3 and PbO 2. The as-synthesized oxide nanobelts are pure, structurally uniform, single crystalline and most of them free from dislocations; they have a rectangular-like cross-section with typical widths of 30–300 nanometers, width-to-thickness ratios of 5–10 and lengths of up to a few millimeters. The belt-like morphology appears to be a unique and common structural characteristic for the family of semiconducting oxides with c

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Schmidt, Ella M., Johnathan M. Bulled, and Andrew L. Goodwin. "Efficient fitting of single-crystal diffuse scattering in interaction space: a mean-field approach." IUCrJ 9, no. 1 (2021): 21–30. http://dx.doi.org/10.1107/s2052252521009982.

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The diffraction patterns of crystalline materials with strongly correlated disorder are characterized by the presence of structured diffuse scattering. Conventional analysis approaches generally seek to interpret this scattering either atomistically or in terms of pairwise (Warren–Cowley) correlation parameters. Here it is demonstrated how a mean-field methodology allows efficient fitting of diffuse scattering directly in terms of a microscopic interaction model. In this way the approach gives as its output the underlying physics responsible for correlated disorder. Moreover, the use of a very

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CHEN, DONG-MENG, and LIANG-JIAN ZOU. "ORBITAL INSULATORS AND ORBITAL ORDER–DISORDER INDUCED METAL–INSULATOR TRANSITION IN TRANSITION-METAL OXIDES." International Journal of Modern Physics B 21, no. 05 (2007): 691–706. http://dx.doi.org/10.1142/s0217979207036618.

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The role of orbital ordering on metal–insulator transition in transition-metal oxides is investigated by the cluster self-consistent field approach in the strong correlation regime. A clear dependence of the insulating gap of single-particle excitation spectra on the orbital order parameter is found. The thermal fluctuation drives the orbital order–disorder transition, diminishes the gap and leads to the metal–insulator transition. The unusual temperature dependence of the orbital polarization in the orbital insulator is also manifested in the resonant X-ray scattering intensity.

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