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 journalArticleAcademicpeer-review

    4 Citations (Scopus)
    102 Downloads (Pure)

    Abstract

    Spin wave attenuation in the layered left perpendicularFeNi/Ptright perpendicular(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
    Pages (from-to)132411-1/3
    Number of pages3
    JournalApplied Physics Letters
    Volume100
    Issue number13
    DOIs
    Publication statusPublished - 2012

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