DOMAIN-STRUCTURES IN MAGNETORESISTIVE GRANULAR METALS

被引:41
作者
GAVRIN, A [1 ]
KELLEY, MH [1 ]
XIAO, JQ [1 ]
CHIEN, CL [1 ]
机构
[1] JOHNS HOPKINS UNIV,DEPT PHYS & ASTRON,BALTIMORE,MD 21218
关键词
D O I
10.1063/1.113892
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have imaged the magnetic domain structure of several heterogeneous CoxAg1-x alloys by using scanning electron microscopy with polarization analysis. These images show that extended domain structures exist in both the as-deposited samples and in samples annealed at moderate temperatures. This suggests that a significant fraction of the cobalt in these materials does not contribute to the giant magnetoresistance. Only those samples annealed at 600°C and containing less than 40% cobalt by volume show no domain structure.© 1995 American Institute of Physics.
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收藏
页码:1683 / 1685
页数:3
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