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13 papers · 1 filter
Calculating Nonlocal Optical Properties of Structures with Arbitrary Shape
Jeffrey M. McMahon, Stephen K. Gray, George C. Schatz
In a recent Letter [Phys. Rev. Lett. 103, 097403 (2009)], we outlined a computational method to calculate the optical properties of structures with a spatially nonlocal dielectric…
Suppression of spin-pumping by a MgO tunnel-barrier
O. Mosendz, J. E. Pearson, F. Y. Fradin +2
Spin-pumping generates pure spin currents in normal metals at the ferromagnet (F)/normal metal (N) interface. The efficiency of spin-pumping is given by the spin mixing conductance…
Temperature dependent nucleation and annihilation of individual magnetic vortices
G. Mihajlovic, M. S. Patrick, J. E. Pearson +5
We studied the temperature dependence of the magnetization reversal in individual submicron permalloy disks with micro-Hall and bend-resistance magnetometry. The nucleation field e…
Quantifying spin Hall angles from spin pumping: Experiments and Theory
O. Mosendz, J. E. Pearson, F. Y. Fradin +3
Spin Hall effects intermix spin and charge currents even in nonmagnetic materials and, therefore, ultimately may allow the use of spin transport without the need for ferromagnets.…
Surface spin flip probability of mesoscopic Ag wires
G. Mihajlovic, J. E. Pearson, S. D. Bader +1
Spin relaxation in mesoscopic Ag wires in the diffusive transport regime is studied via nonlocal spin valve and Hanle effect measurements performed on permalloy/Ag lateral spin val…
Morphology of Graphene on SiC(000-1) Surfaces
Luxmi, P. J. Fisher, N. Srivastava +5
Graphene is formed on SiC(000-1) surfaces (the so-called C-face of the crystal) by annealing in vacuum, with the resulting films characterized by atomic force microscopy, Auger ele…