Electrically insulating properties of the 5d double perovskite Sr2YOsO6

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	Electrically insulating properties of the 5d double perovskite Sr2YOsO6
	Li, Jinghua; Chen, Ying; Yamaura, Kazunari; Guo, Yanfeng; Shi, Youguo; Xu, Gang; Kolodiazhnyi, Taras; Alexei, Belik A.; Matsushita, Yoshitaka; Wang, Hongyuan
刊名	J. Appl. Phys.
	2017
卷号	122 期号:10
通讯作者	guoyf@shanghaitech.edu.cn ; chenying@gdut.edu.cn
英文摘要	A high-pressure-synthesized double perovskite Sr2YOsO6 was investigated by synchrotron X-ray diffraction and measurements of its magnetic susceptibility, specific heat capacity, complex impedance, and complex dielectric constant. It crystallized into a monoclinic double perovskite structure (P2(1)/n) with complete ordering of the Y and Os atoms. Its magnetic behaviors, including the antiferromagnetic transition temperature (similar to 52 K), Curie-Weiss effective moment [3.48(5) mu B/Os], and Weiss temperature [- 350.1(7) K], were close to the respective values of Sr2YOsO6 previously synthesized without an applied pressure of 6 GPa. Transport property measurements revealed that the lower limit of the activation energy was 192(1) meV and the charge gap remained open regardless of the presence of magnetic order, conflicting with the electron delocalization predicted by theoretical calculations. Further consideration, including theoretical and experimental investigations of the roles of spin-orbit coupling and U of the 5d electrons of Os 5d-t(2)g(3), may assist in understanding the general magnetic and insulating behaviors of quasi-half-filled 5d-t(2)g(3) oxides in the perovskite category toward the use of 5d double perovskite for magnetic applications. Published by AIP Publishing.
收录类别	SCI
资助信息	World Premier International Research Center Initiative (WPI Initiative, MEXT, Japan); Japan Society for the Promotion of Science (JSPS) [15K14133, 16H04501]; Bilateral Open Partnership Joint Research Projects; Natural Science Foundation of Shanghai [17ZR1443300]; Project of Science and Technology of Guangdong Province [2013A011402006]
WOS记录号	WOS:000410749300011
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28761]
专题	上海光学精密机械研究所_其他
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Li, Jinghua,Chen, Ying,Yamaura, Kazunari,et al. Electrically insulating properties of the 5d double perovskite Sr2YOsO6[J]. J. Appl. Phys.,2017,122(10).
APA	Li, Jinghua.,Chen, Ying.,Yamaura, Kazunari.,Guo, Yanfeng.,Shi, Youguo.,...&Wang, Xia.(2017).Electrically insulating properties of the 5d double perovskite Sr2YOsO6.J. Appl. Phys.,122(10).
MLA	Li, Jinghua,et al."Electrically insulating properties of the 5d double perovskite Sr2YOsO6".J. Appl. Phys. 122.10(2017).