MAGNETORESISTANCE IN A GRANULAR FE-MG SYSTEM

被引：3

作者：

PETTIT, K ^{[1
]}

KITA, E ^{[1
]}

ARAGA, K ^{[1
]}

TASAKI, A ^{[1
]}

SALAMON, MB ^{[1
]}

机构：

[1] UNIV TSUKUBA,INST APPL PHYS,TSUKUBA,IBARAKI 305,JAPAN

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 75卷 / 10期

关键词：

D O I：

10.1063/1.356780

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have prepared granular films of Fe (36 at. %)-Mg (64 at. %) and measured the magnetization, resistance, and thermopower as a function of the applied magnetic field at temperatures between 300 and 6 K. The as-prepared sample has a magnetoresistance ratio (DELTAR/R(max)) of -6.3% in a field of 5.5 T at 6 K. The samples were annealed at temperatures between 150-degrees-C and 228-degrees-C for one hour. The MR does not vary as the square of the magnetization, as predicted by theory. We attribute this to a particle size distribution effect.

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页码：6918 / 6920

页数：3

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