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Heat conductivity and thermopower of Nd1-xSrxCoO3 ceramic

文献类型:期刊论文

作者Morchshakov, V ; Haupt, L ; Barner, K ; Troyanchuk, IO ; Rao, GH ; Ghoshray, A ; Gmelin, E
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2004
卷号372期号:1-2页码:17
关键词LOW-SPIN TRANSITIONS MAGNETIC-PROPERTIES ELECTRICAL-PROPERTIES AMORPHOUS-ALLOYS DOUBLE EXCHANGE RARE-EARTH RCOO3 R LACOO3 LA LA1-XSRXMNO3
ISSN号0925-8388
通讯作者Barner, K: Byelarussian Acad Sci, Inst Solid State & Semicond Phys, P Brovki 17, Minsk, Byelarus.
中文摘要Nd1-xSrxCoO3 polycrystals have been prepared in the compositional range 0 < x < 0.5. Magnetisation, resistivity, thermoelectric power (TEP) and heat conductivity have been measured. Metallic conduction (drho/dT > 0) is observed for x > 0.4. All other compounds show activated behaviour: drho/dT < 0. A higher order transition is observed in the heat conductivity kappa(T) and the thermopower S(T) of the base compound around T-s = 200 K which gradually smoothens out with increasing Sr-content. Specifically, we propose a low spin-low spin approach transition which involves phonons in a way similar to the dynamic Jahn-Teller effect. (C) 2003 Elsevier B.V. All rights reserved.
收录类别SCI
语种英语
公开日期2013-09-17
源URL[http://ir.iphy.ac.cn/handle/311004/39116]  
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
Morchshakov, V,Haupt, L,Barner, K,et al. Heat conductivity and thermopower of Nd1-xSrxCoO3 ceramic[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2004,372(1-2):17.
APA Morchshakov, V.,Haupt, L.,Barner, K.,Troyanchuk, IO.,Rao, GH.,...&Gmelin, E.(2004).Heat conductivity and thermopower of Nd1-xSrxCoO3 ceramic.JOURNAL OF ALLOYS AND COMPOUNDS,372(1-2),17.
MLA Morchshakov, V,et al."Heat conductivity and thermopower of Nd1-xSrxCoO3 ceramic".JOURNAL OF ALLOYS AND COMPOUNDS 372.1-2(2004):17.

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来源:物理研究所

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