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题名: Spin-glass behavior and exchange bias in phase-separated Nd0.85Sr0.15CoO3
作者: Mao, Jinhua1;  Sui, Yu1, 2;  Wang, Xianjie1;  Yang, Yiyun1;  Zhang, Xingquan1;  Wang, Yang3;  Wang, Yi1;  Liu, Wanfa4
关键词: Spin glasses ;  Cobaltite ;  Exchange and superexchange ;  Exchange bias
刊名: JOURNAL OF ALLOYS AND COMPOUNDS
发表日期: 2011-04-14
DOI: 10.1016/j.jallcom.2011.01.105
卷: 509, 期:15, 页:4950-4953
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary ;  Metallurgy & Metallurgical Engineering
研究领域[WOS]: Chemistry ;  Materials Science ;  Metallurgy & Metallurgical Engineering
英文摘要: The magnetic properties of Nd0.85Sr0.15CoO3 have been systematically investigated by dc magnetization, ac susceptibility and magnetic relaxation. The dynamics scaling analysis of ac susceptibility and magnetic relaxation give sufficient evidence of the existence of a spin-glass phase, which can be ascribed to the complicated interactions among Co3+ and Co4+ ions in this phase-separated compound. The field-cooled magnetic hysteresis loop displays both horizontal and vertical shifts, i.e., the exchange bias effect, while no shifts are present with increase of the measuring field up to +/- 50 kOe. The results further sustain the picture of the spin-glass phase coexisting with other magnetic regions in the sample. (C) 2011 Elsevier B.V. All rights reserved.
关键词[WOS]: LA1-XSRXCOO3 0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.5 ;  TRANSPORT-PROPERTIES ;  MAGNETIC-PROPERTIES ;  SYSTEM ;  DYNAMICS
语种: 英语
WOS记录号: WOS:000289370200007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142328
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Harbin Inst Technol, Dept Phys, CCMST, Harbin 150001, Peoples R China
2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
3.Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore
4.Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Mao, Jinhua,Sui, Yu,Wang, Xianjie,et al. Spin-glass behavior and exchange bias in phase-separated Nd0.85Sr0.15CoO3[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2011,509(15):4950-4953.
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