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Author Evelt, M. ♦ Demidov, V. E. ♦ Bessonov, V. ♦ Demokritov, S. O. ♦ Prieto, J. L. ♦ Muñoz, M. ♦ Ben Youssef, J. ♦ Naletov, V. V. ♦ Loubens, G. de ♦ Klein, O. ♦ Collet, M. ♦ Garcia-Hernandez, K. ♦ Bortolotti, P. ♦ Cros, V. ♦ Anane, A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ AMPLIFICATION ♦ CONTROL ♦ DAMPING ♦ FERRITE GARNETS ♦ IRON ♦ LAYERS ♦ NONLINEAR PROBLEMS ♦ SCATTERING ♦ SPATIAL RESOLUTION ♦ SPIN ♦ SPIN WAVES ♦ WAVE PROPAGATION ♦ WAVEGUIDES ♦ YTTRIUM
Abstract 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 μm 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.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-04-25
Publisher Place United States
Journal Applied Physics Letters
Volume Number 108
Issue Number 17


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