Anomalous GMR in Fe2+xV1-xGa and Fe2+yV1-yAl

被引：31

作者：

Endo, K

Matsuda, H ^{[1
]}

Ooiwa, K

Iijima, M

Goto, T

Sato, K

Umehara, I

机构：

[1] Tokyo Med Coll, Dept Phys, Shinjuku Ku, Tokyo 160, Japan

[2] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 106, Japan

[3] Yokohama Natl Univ, Fac Engn, Yokohama, Kanagawa 240, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1998年 / 177卷

关键词：

magnetoresistance; -; giant; Heusler alloys; phase transitions - metal-insulator; semiconductors;

D O I：

10.1016/S0304-8853(97)00966-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Negative giant magnetoresistance (GMR) has been obtained in Fe2+xV1-xGa and Fe2+yV1-yAl: 48% for Fe2VGa and 30% for Fe2.1V0.9Al. These alloys show semiconductor-like electrical resistance for x < 0 and y = 0. The ferromagnetic alloys with x greater than or equal to 0, y > 0 reveal resistance maximum near the Curie temperature. These results indicate that the metal-insulator transition is ascribed to magnetic ordering. (C) 1998 Elsevier Science B.V. Al rights reserved.

引用

页码：1437 / 1438

页数：2

共 4 条

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