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Spin-Transfer Torque and Electron-Magnon Scattering
S. Urazhdin
According to the spin-torque model, current-driven magnetic dynamics in ferromagnetic multilayers is determined by the transfer of electron spin perpendicular to the layers' magnet…
Giant Magnetoresistance in Multilayers with Noncollinear Magnetizations
S. Urazhdin, R. Loloee, W. P. Pratt
We study the dependence of perpendicular-current magnetoresistance in magnetic multilayers on the angle between the magnetizations of the layers. This dependence varies with the th…
Studies of dc Current-Driven Switching in Py/N/Py magnetic nanopillars
S. Urazhdin, W. P. Pratt, J. Bass
We provide new data on current-driven switching in Permalloy (Py = Ni84Fe16) based nanopillars at room temperature and 4.2K that confirm and extend previously published work. We pr…
Studies of Current-Driven Excitations in Co/Cu/Co Trilayer Nanopillars
S. Urazhdin, Norman O. Birge, W. P. Pratt +1
We measure the dynamic resistance of a Co/Cu/Co trilayer nanopillar at varied magnetic field and current . The resistance displays the usual behavior, almost symmetric in $H…
Effect of Interlayer Coupling on Current-Assisted Magnetization Switching in Nanopillars
S. Urazhdin, W. P. Pratt, J. Bass
We show that dipole-field induced antiferromagnetic coupling, or RKKY ferromagnetic coupling, between Co layers can strongly affect the low magnetic field switching behavior of Co/…