TEM STUDIES IN MELT-SPUN CU-MN-AL SYSTEM EXHIBITING GIANT MAGNETORESISTANCE

被引：6
|
作者：
MURTHY, AS [1 ]
LI, YP [1 ]
HADJIPANAYIS, GC [1 ]
LAWLESS, KR [1 ]
机构：
[1] UNIV VIRGINIA,DEPT MAT SCI,CHARLOTTESVILLE,VA 22901
来源：
IEEE TRANSACTIONS ON MAGNETICS | 1995年 / 31卷 / 06期
关键词：
GIANT MAGNETORESISTANCE; CU-MN-AL; HEUSLER ALLOYS; TRANSMISSION ELECTRON MICROSCOPY; MELT-SPINNING;
D O I：
10.1109/20.489829
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Giant magnetoresistance (GMR) has recently been observed in a new system, melt-spun ribbons of Cu-Mn-Al, with Delta R/R(0) = 15% at 30 K. The GMR behavior in this system has been extensively studied for a range of compositions. It is suggested that the onset of GMR may be attributed to the appearance of tweed microstructure in the ferromagnetic Cu2MnAl phase. It has also been observed that GMR existed in all samples consisting of a mixture of varying amounts of Cu2MnAl and CU9Al4 phases. Extensive transmission electron microscopy studies have been carried out to evaluate the microstructural evolution of the tweed and the observed phases, and to correlate the microstructure with the observed GMR behavior.
引用
收藏
页码：3958 / 3960
页数：3
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