Spin Hall-induced auto-oscillations in ultrathin YIG grown on Pt.

Evelt, M; Safranski, C; Aldosary, Mohammed; Demidov, V E; Barsukov, I; Nosov, A P; Rinkevich, A B; Sobotkiewich, K; Li, Xiaoqin; Shi, Jing; Krivorotov, I N; Demokritov, S O

Evelt, M; Safranski, C; Aldosary, Mohammed; Demidov, V E; Barsukov, I; Nosov, A P; Rinkevich, A B; Sobotkiewich, K; Li, Xiaoqin; Shi, Jing; Krivorotov, I N; Demokritov, S O.

Afiliação

Evelt M; Institute for Applied Physics and Center for Nanotechnology, University of Muenster, Corrensstrasse 2-4, 48149, Muenster, Germany. m_evel01@uni-muenster.de.
Safranski C; Department of Physics and Astronomy, University of California, Irvine, CA, 92697, USA.
Aldosary M; Department of Physics and Astronomy, University of California, Riverside, CA, 92521, USA.
Demidov VE; Institute for Applied Physics and Center for Nanotechnology, University of Muenster, Corrensstrasse 2-4, 48149, Muenster, Germany.
Barsukov I; Department of Physics and Astronomy, University of California, Irvine, CA, 92697, USA.
Nosov AP; Department of Physics and Astronomy, University of California, Riverside, CA, 92521, USA.
Rinkevich AB; Institute of Metal Physics, Ural Division of RAS, Ekaterinburg, 620108, Russia.
Sobotkiewich K; Institute of Metal Physics, Ural Division of RAS, Ekaterinburg, 620108, Russia.
Li X; Department of Physics, Center for Complex Quantum Systems, The University of Texas at Austin, Austin, Texas, 78712, USA.
Shi J; Department of Physics, Center for Complex Quantum Systems, The University of Texas at Austin, Austin, Texas, 78712, USA.
Krivorotov IN; Department of Physics and Astronomy, University of California, Riverside, CA, 92521, USA.
Demokritov SO; Department of Physics and Astronomy, University of California, Irvine, CA, 92697, USA.

Sci Rep ; 8(1): 1269, 2018 01 19.

Article em En | MEDLINE | ID: mdl-29352149

ABSTRACT

ABSTRACT

We experimentally study nanowire-shaped spin-Hall nano-oscillators based on nanometer-thick epitaxial films of Yttrium Iron Garnet grown on top of a layer of Pt. We show that, although these films are characterized by significantly larger magnetic damping in comparison with the films grown directly on Gadolinium Gallium Garnet, they allow one to achieve spin current-driven auto-oscillations at comparable current densities, which can be an indication of the better transparency of the interface to the spin current. These observations suggest a route for improvement of the flexibility of insulator-based spintronic devices and their compatibility with semiconductor technology.

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Rep Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Alemanha

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