Large magnetoresistance using hybrid spin filter devices
LeClair, P. · Ha, J. K. · Swagten, H. J. M. · van de Vin, C. H. · Kohlhepp, J. T. · de Jonge, W. J. M.
الأصل · EN
A magnetic "spin filter" tunnel barrier, sandwiched between a non-magnetic metal and a magnetic metal, is used to create a new magnetoresistive tunnel device, somewhat analogous to an optical polarizer-analyzer configuration. The resistance of these trilayer structures depends on the relative magnetization orientation of the spin filter and the ferromagnetic electrode. The spin filtering in this configuration yields a previously unobserved magnetoresistance effect, exceeding 100%.
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