期刊
SOLID STATE COMMUNICATIONS
卷 118, 期 10, 页码 513-516出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0038-1098(01)00151-X
关键词
magnetically ordered materials; electronic band structure; electronic states (localized); electronic transport; spin dynamics
Polycrystalline Mn2VAl samples with the ordered L2(1) structure were examined by X-ray diffraction, magnetisation and resistivity measurements. The magneto moment at 5 K is 1.94 mu (B)/f.u. and the residual resistivity is 13 x 10(-8) Omega m, with little temperature dependence below 60 K. The low magnetoresistance (<0.1% at 1 T at 77 K) measured on polycrystalline samples or pressed powders makes it difficult to attribute a half-metallic character to Mn2VAl, as had been proposed on the basis of band structure calculation. (C) 2001 Published by Elsevier Science Ltd.
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