Attenuation of propagating spin wave induced by layered nanostructures

K. Sekiguchi, T. N. Vader, K. Yamada, S. Fukami, N. Ishiwata, S. M. Seo, S. W. Lee, K. J. Lee, T. Ono

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

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).

Original languageEnglish
Article number132411
JournalApplied Physics Letters
Volume100
Issue number13
DOIs
Publication statusPublished - 2012 Mar 26
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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