Seebeck coefficients of half-metallic ferromagnets

被引:79
作者
Balke, Benjamin [1 ]
Ouardi, Siham [1 ]
Graf, Tanja [1 ]
Barth, Joachim [1 ]
Blum, Christian G. F. [1 ]
Fecher, Gerhard H. [1 ]
Shkabko, Andrey [2 ]
Weidenkaff, Anke [2 ]
Felser, Claudia [1 ]
机构
[1] Johannes Gutenberg Univ Mainz, Inst Anorgan Chem & Analyt Chem, D-55099 Mainz, Germany
[2] Swiss Fed Labs Mat Testing & Res, EMPA, CH-8600 Dubendorf, Switzerland
关键词
Heusler compounds; Seebeck coefficients; Half-metallic ferromagnets; Electronic structure; SPINTRONICS; ELECTRONICS;
D O I
10.1016/j.ssc.2009.10.044
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
In this article the Co-2 based Heusler compounds are discussed as potential materials for spin voltage generation. The compounds were synthesized by arc melting and consequent annealing. Band structure calculations were performed which revealed the compounds to be half-metallic ferromagnets. Magnetometry was performed on the samples and the Curie temperatures and the magnetic moments were determined. The Seebeck coefficients were measured from low to ambient temperatures for all compounds. For selected compounds high temperature measurements up to 900 K were performed. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:529 / 532
页数:4
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