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Increased low-temperature damping in yttrium iron garnet thin films
C. L. Jermain, S. V. Aradhya, J. T. Brangham +6
We report measurements of the frequency and temperature dependence of ferromagnetic resonance (FMR) for a 15-nm-thick yttrium iron garnet (YIG) film grown by off-axis sputtering. A…
Spin-Hall Torques Generated by Rare-Earth (Lanthanide) Thin Films
Neal Reynolds, Priyamvada Jadaun, John T. Heron +6
We report an initial experimental survey of spin-Hall torques generated by the rare-earth metals Gd, Dy, Ho, and Lu, along with comparisons to first-principles calculations of thei…
Low-damping sub-10-nm thin films of lutetium iron garnet grown by molecular-beam epitaxy
C. L. Jermain, H. Paik, S. V. Aradhya +3
We analyze the structural and magnetic characteristics of (111)-oriented lutetium iron garnet (LuFeO) films grown by molecular-beam epitaxy, for films as thin as 2.8…
On the origin of field-like spin-orbit torques in heavy metal-ferromagnet-oxide thin film heterostructures
Yongxi Ou, Chi-Feng Pai, Shengjie Shi +2
We report measurements of the thickness and temperature (T) dependencies of current-induced spin-orbit torques, especially the field-like (FL) component, in various heavy metal (HM…
Nanosecond-timescale low error switching of in-plane magnetic tunnel junctions through dynamic Oersted-field assisted spin-Hall effect
Sriharsha V. Aradhya, Graham E. Rowlands, Junseok Oh +2
We investigate fast-pulse switching of in-plane-magnetized magnetic tunnel junctions (MTJs) within 3-terminal devices in which spin-transfer torque is applied to the MTJ by the gia…
Control of spin-orbit torques through crystal symmetry in WTe2/ferromagnet bilayers
D. MacNeill, G. M. Stiehl, M. H. D. Guimaraes +3
Recent discoveries regarding current-induced spin-orbit torques produced by heavy-metal/ferromagnet and topological-insulator/ferromagnet bilayers provide the potential for dramati…