Ferromagnetic-like hysteresis and an exchange biasing effect in bulk spin-density-wave CrCoV alloys

被引：2

作者：

Galkin, VY

Ortiz, WA

Ali, N

Fawcett, E

机构：

[1] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil

[2] IP Bardin Cent Ferrous Met Res Inst, Moscow, Russia

[3] So Illinois Univ, Dept Phys, Carbondale, IL 62901 USA

[4] Univ Toronto, Dept Phys, Toronto, ON, Canada

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷

基金：

巴西圣保罗研究基金会;

关键词：

exchange bias; spin-density wave; antiferromagnetism;

D O I：

10.1016/S0304-8853(00)01319-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The temperature and field dependence of the magnetization of the spin-density-wave (SDW) alloys (Cr + y% Co)(1-x)V-x (y = 3.2 and 6.5% Co, 0 less than or equal to x less than or equal to 5% V) has been measured with a SQUID magnetometer over the temperature range, 2 less than or equal to T less than or equal to 400 K, in magnetic fields up to H = 5.5 T in the field cooled (FC) and zero-field cooled (ZFC) states. An exchange biasing effect is observed after field cooling in a strong magnetic field. In the alloys (Cr + 6.5% Co)(1-x)V-x (x greater than or equal to 1% V), ferromagnetic-like hysteresis is observed in the FC state but not in the ZFC state. These effects are caused by magnetic interaction between the moment on the Cc impurity atom with the SDW. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：1083 / 1085

页数：3