Current-Induced Magnetization Switching in Permalloy-based Nanopillars with Cu, Ag, and Au
H. Kurt, R. Loloee, W. P. Pratt, J. Bass
Abstract
We compare magnetoresistances (MR) and switching currents (Is) at room temperature (295K) and 4.2K for Permalloy/N/Permalloy nanopillars undergoing current-induced magnetization switching (CIMS), with non-magnetic metals N = Cu, Ag, and Au. The N-metal thickness is held fixed at 10 nm. Any systematic differences in MR and Is for the different N-metals are modest, suggesting that Ag and Au represent potentially viable alternatives for CIMS studies and devices to the more widely used Cu.
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