Giant magnetoresistance in nonmultilayer magnetic systems
John Q. XiaoDepartment of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218J. S. JiangDepartment of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218C. L. ChienDepartment of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218
1992en
ABI
Abstract
We have observed isotropic giant magnetoresistance (GMR) in nonmultilayer magnetic systems using granular magnetic solids. We show that GMR occurs in magnetically inhomogeneous media containing nonaligned ferromagnetic entities on a microscopic scale. The GMR is determined by the orientations of the magnetization axes, the density, and the size of the ferromagnetic entities.
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