New mixed perovskite RCo0.5Cr0.5O3 (R = Dy, Ho, Er) as a potential thermoelectric and sensory material
Електронний науковий архів Науково-технічної бібліотеки Національного університету "Львівська політехніка"
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
New mixed perovskite RCo0.5Cr0.5O3 (R = Dy, Ho, Er) as a potential thermoelectric and sensory material
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| Creator |
Hreb, Vasyl
Vasylechko, Leonid Prots, Yurii Fitch, Andrew |
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| Contributor |
Lviv Polytechnic National University
Max-Planck-Institut für Chemische Physik fester Stoffe ESRF-The European Synchrotron |
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| Subject |
perovskite
thermal expansion lattice parameters insulator-metal transition spin state mixed cobaltites and chromites spin transition |
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| Description |
The mixed earth rare cobaltites and chromites with general formula RCo0.5Cr0.5O3 (R = Dy, Ho, Er) were obtained by solid state reaction in air at 1373 K. Based on high temperature X-ray synchrotron powder diffraction data in range temperature 298 –1273 K abnormal thermal expansion of lattice dimensions was observed. Thermal expansion coefficient showed maxima, which point on insulator-metal transition. Abnormal behavior is associated with changes of spin state of Co3+ ions.
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| Date |
2018-04-10T13:10:46Z
2018-04-10T13:10:46Z 2016 |
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| Type |
Conference Abstract
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| Identifier |
New mixed perovskite RCo0.5Cr0.5O3 (R = Dy, Ho, Er) as a potential thermoelectric and sensory material / Vasyl Hreb, Leonid Vasylechko, Yurii Prots, Andrew Fitch // Litteris et Artibus : proceedings of the 6th International youth science forum, November 24–26, 2016, Lviv, Ukraine / Lviv Polytechnic National University. – Lviv : Lviv Polytechnic Publishing House, 2016. – P. 47–48. – Bibliography: 5 titles.
http://ena.lp.edu.ua:8080/handle/ntb/40246 |
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| Language |
en
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| Relation |
[1] N.K. Guar, P. Thakur, “Thermal and mechanical properties of RCoO3,” Metall. Mater. Trans., vol. 44A, pp.5876–5883, 2013. [2] Sh. Lei, L. Liu, Ch. Wang at al. “General synthesis of rare-earth orthochromites with quasi-hollow nanostructures and their magnetic properties,” J. Mater. Chem. A, vol.1, pp. 11982, 2013. [3] H. Hashimoto, T. Kusunose, T. Sekino, “Influence of ionic sizes of rare earths on thermoelectric properties of perovskite-type rare earth cobalt oxides RCoO3,” J. Alloys Compd., vol. 484, pp. 246–248, 2009. [4] K. Knížek, Z. Jirák, J. Hejtmánek et al. “Structural anomalies associated with the electronic and spin transitions in LnCoO3,” Eur. Phys. J. B., vol. 47, pp.213, 2005. [5] M. Tachibana, T. Yoshida. et al. “Evolution of electronic states in RCoO3 (R = rare earth): Heat capacity measurements,” Phys. Rev. B, vol. 77, pp.094402, 2008.
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| Format |
47-48
application/pdf |
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| Coverage |
UA
Lviv |
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| Publisher |
Lviv Polytechnic Publishing House
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