Attenuation of propagating spin wave induced by layered nanostructures | Zendy

Koji Sekiguchi | Zendy; T. N. Vader | Zendy; K. Yamada | Zendy; Shunsuke Fukami | Zendy; N. Ishiwata | Zendy; S. M. Seo | Zendy; S. W. Lee | Zendy; KyungJin Lee | Zendy; Teruo Ono | Zendy

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Attenuation of propagating spin wave induced by layered nanostructures

Author(s) -

Koji Sekiguchi,

T. N. Vader,

K. Yamada,

Shunsuke Fukami,

N. Ishiwata,

S. M. Seo,

S. W. Lee,

KyungJin Lee,

Teruo Ono

Publication year - 2012

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3699020

Subject(s) - oscilloscope , attenuation , attenuator (electronics) , waveform , spin wave , materials science , permalloy , amplitude , thin film , optoelectronics , condensed matter physics , optics , physics , voltage , nanotechnology , magnetization , quantum mechanics , ferromagnetism , detector , magnetic field

Spin wave attenuation in the layered [FeNi/Pt]6/FeNi thin films was investigated by the time-domain electrical measurement. The spin-wave waveform was detected with an asymmetric coplanar strip transmission line, as an induced voltage flowing into a fast oscilloscope. We report that the amplitude of a spin-wave packet was systematically changed by controlling the thickness of a platinum layer, up to a maximum change of 50%. The virtues of spin wave, ultrafast propagation velocity and non-reciprocal emission, are preserved in this manner. This means that the Pt layer can manipulate an arbitral power-level of spin-wave input signal (reliable attenuator).

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