MAGNETIC AND MAGNETORESISTIVE PROPERTIES OF MECHANICALLY ALLOYED FE25CU75

被引：20

作者：

EILON, M

DING, J

STREET, R

机构：

[1] Res. Centre for Adv. Miner. and Mater. Process., Western Australia Univ., Nedlands, WA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1995年 / 7卷 / 25期

关键词：

D O I：

10.1088/0953-8984/7/25/015

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Fe25Cu75 samples were prepared by mechanical alloying followed by annealing. Mossbauer and magnetic measurements indicate superparamagnetic behaviour of the as-milled sample, probably due to the existance of Fe-rich regions in the FCC Cu matrix. Annealing causes the formation of alpha-Fe, which precipitates from Fe atoms dissolved in the FCC Cu phase. Magnetoresistance measurements for the as-milled sample show a 5.6-7.3% drop in resistance at 300 K and 50 K respectively, in applied fields of 12 T.

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页码：4921 / 4928

页数：8

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