期刊
APPLIED PHYSICS LETTERS
卷 108, 期 17, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4948252
关键词
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资金
- Deutsche Forschungsgemeinschaft
- ANR
- Russian Ministry of Education and Science [14.Z50.31.0025]
- DGA
- Competitive Growth of KFU
We study experimentally with submicrometer spatial resolution the propagation of spin waves in microscopic waveguides based on the nanometer-thick yttrium iron garnet and Pt layers. We demonstrate that by using the spin-orbit torque, the propagation length of the spin waves in such systems can be increased by nearly a factor of 10, which corresponds to the increase in the spin-wave intensity at the output of a 10 mu m long transmission line by three orders of magnitude. We also show that, in the regime, where the magnetic damping is completely compensated by the spin-orbit torque, the spin-wave amplification is suppressed by the nonlinear scattering of the coherent spin waves from current-induced excitations. Published by AIP Publishing.
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