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dc.contributor.author | Corredor L. | |
dc.contributor.author | Aslan-Cansever G. | |
dc.contributor.author | Sturza M. | |
dc.contributor.author | Manna K. | |
dc.contributor.author | Maljuk A. | |
dc.contributor.author | Gass S. | |
dc.contributor.author | Dey T. | |
dc.contributor.author | Wolter A. | |
dc.contributor.author | Kataeva O. | |
dc.contributor.author | Zimmermann A. | |
dc.contributor.author | Geyer M. | |
dc.contributor.author | Blum C. | |
dc.contributor.author | Wurmehl S. | |
dc.contributor.author | Büchner B. | |
dc.date.accessioned | 2018-09-19T23:08:24Z | |
dc.date.available | 2018-09-19T23:08:24Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 2469-9950 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/145979 | |
dc.description.abstract | © 2017 American Physical Society.Recently, the iridate double perovskite Sr2YIrO6 has attracted considerable attention due to the report of unexpected magnetism in this Ir5+ (5d4) material, in which according to the Jeff model, a nonmagnetic ground state is expected. However, in recent works on polycrystalline samples of the series Ba2-xSrxYIrO6 no indication of magnetic transitions have been found. We present a structural, magnetic, and thermodynamic characterization of Sr2YIrO6 single crystals, with emphasis on the temperature and magnetic field dependence of the specific heat. As determined by x-ray diffraction, the Sr2YIrO6 single crystals have a cubic structure, with space group Fm3m. In agreement with the expected nonmagnetic ground state of Ir5+ (5d4) in Sr2YIrO6, no magnetic transition is observed down to 430 mK. Moreover, our results suggest that the low-temperature anomaly observed in the specific heat is not related to the onset of long-range magnetic order. Instead, it is identified as a Schottky anomaly caused by paramagnetic impurities present in the sample, of the order of n∼0.5(2)%. These impurities lead to non-negligible spin correlations, which nonetheless, are not associated with long-range magnetic ordering. | |
dc.relation.ispartofseries | Physical Review B | |
dc.title | Iridium double perovskite Sr2YIrO6: A combined structural and specific heat study | |
dc.type | Article | |
dc.relation.ispartofseries-issue | 6 | |
dc.relation.ispartofseries-volume | 95 | |
dc.collection | Публикации сотрудников КФУ | |
dc.source.id | SCOPUS24699950-2017-95-6-SID85013040495 |