High-pressure synthesis, crystal structure, and magnetic properties of KSbO3-type 5d oxides K0.84OsO3 and Bi2.93Os3O11

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	High-pressure synthesis, crystal structure, and magnetic properties of KSbO3-type 5d oxides K0.84OsO3 and Bi2.93Os3O11
	Yuan, YH ; Feng, HL ; Shi, YG ; Tsujimoto, Y ; Belik, AA ; Matsushita, Y ; Arai, M ; He, JF ; Tanaka, M ; Yamaura, K
刊名	SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
	2014
卷号	15 期号:6
关键词	high-pressure synthesis osmium oxide KSbO3-type KOsO3 Bi3Os3O11
ISSN号	1468-6996
通讯作者	Yuan, YH (reprint author), Natl Inst Mat Sci, Superconducting Properties Unit, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan.
中文摘要	5d Solid-state oxides K0.84OsO3 (Os5.16+; 5d (2.84)) and Bi2.93Os3O11 (Os4.40+; 5d (3.60)) were synthesized under high-pressure and high-temperature conditions (6 GPa and 1500-1700 degrees C). Their crystal structures were determined by synchrotron x-ray diffraction and their 5d electronic properties and tunnel-like structure motifs were investigated. A KSbO3-type structure with a space group of Im-3 and Pn-3 was determined for K0.84OsO3 and Bi2.93Os3O11, respectively. The magnetic and electronic transport properties of the polycrystalline compounds were compared with those obtained theoretically. It was revealed that the 5d tunnel-like structures are paramagnetic with metallic charge conduction at temperatures above 2 K. This was similar to what was observed for structurally relevant 5d oxides, including Bi3Re3O11 (Re4.33+; 5d (2.66)) and Ba2Ir3O9 (Ir4.66+; 5d (4.33)). The absence of long-range magnetic order seems to be common among 5d KSbO3-like oxides, regardless of the number of 5d electrons (between 2.6 and 4.3 per 5d atom).
资助信息	World Premier International Research Center of the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan; Japan Society for the Promotion of Science (JSPS) [25289233]; Funding Program for World Leading Innovative R&D on Science and Technology (FIRST Program), Japan
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59661]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Yuan, YH,Feng, HL,Shi, YG,et al. High-pressure synthesis, crystal structure, and magnetic properties of KSbO3-type 5d oxides K0.84OsO3 and Bi2.93Os3O11[J]. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS,2014,15(6).
APA	Yuan, YH.,Feng, HL.,Shi, YG.,Tsujimoto, Y.,Belik, AA.,...&Yamaura, K.(2014).High-pressure synthesis, crystal structure, and magnetic properties of KSbO3-type 5d oxides K0.84OsO3 and Bi2.93Os3O11.SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS,15(6).
MLA	Yuan, YH,et al."High-pressure synthesis, crystal structure, and magnetic properties of KSbO3-type 5d oxides K0.84OsO3 and Bi2.93Os3O11".SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 15.6(2014).