New mixed perovskite RCo0.5Cr0.5O3 (R = Dy, Ho, Er) as a potential thermoelectric and sensory material
| dc.citation.conference | Litteris et Artibus | |
| dc.contributor.affiliation | Lviv Polytechnic National University | uk_UA |
| dc.contributor.affiliation | Max-Planck-Institut für Chemische Physik fester Stoffe | uk_UA |
| dc.contributor.affiliation | ESRF-The European Synchrotron | uk_UA |
| dc.contributor.author | Hreb, Vasyl | |
| dc.contributor.author | Vasylechko, Leonid | |
| dc.contributor.author | Prots, Yurii | |
| dc.contributor.author | Fitch, Andrew | |
| dc.coverage.country | UA | uk_UA |
| dc.coverage.placename | Lviv | uk_UA |
| dc.date.accessioned | 2018-04-10T13:10:46Z | |
| dc.date.available | 2018-04-10T13:10:46Z | |
| dc.date.issued | 2016 | |
| dc.description.abstract | 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. | uk_UA |
| dc.format.pages | 47-48 | |
| dc.identifier.citation | 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. | uk_UA |
| dc.identifier.uri | https://ena.lpnu.ua/handle/ntb/40246 | |
| dc.language.iso | en | uk_UA |
| dc.publisher | Lviv Polytechnic Publishing House | uk_UA |
| dc.relation.referencesen | [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. | uk_UA |
| dc.subject | perovskite | uk_UA |
| dc.subject | thermal expansion | uk_UA |
| dc.subject | lattice parameters | uk_UA |
| dc.subject | insulator-metal transition | uk_UA |
| dc.subject | spin state | uk_UA |
| dc.subject | mixed cobaltites and chromites | uk_UA |
| dc.subject | spin transition | uk_UA |
| dc.title | New mixed perovskite RCo0.5Cr0.5O3 (R = Dy, Ho, Er) as a potential thermoelectric and sensory material | uk_UA |
| dc.type | Conference Abstract | uk_UA |