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Domain Structures in Magnetoresistive Granular Metals



A Gavrin, Michael H. Kelley, J Xiao, C Chien, Robert Celotta


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.
Applied Physics Letters


Gavrin, A. , Kelley, M. , Xiao, J. , Chien, C. and Celotta, R. (1995), Domain Structures in Magnetoresistive Granular Metals, Applied Physics Letters, [online], (Accessed July 24, 2024)


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Created December 31, 1994, Updated October 12, 2021