Femtosecond resonant magneto-optical Kerr effect measurement on an ultrathin magnetic film in a soft X-ray free electron laser

Shingo Yamamoto, Yuya Kubota, Kohei Yamamoto, Yoshinobu Takahashi, Kohei Maruyama, Yuta Suzuki, Rei Hobara, Masami Fujisawa, Daiki Oshima, Shigeki Owada, Tadashi Togashi, Kensuke Tono, Makina Yabashi, Yasuyuki Hirata, Susumu Yamamoto, Masato Kotsugi, Hiroki Wadati, Takeshi Kato, Satoshi Iwata, Shik ShinIwao Matsuda

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Time-resolved magneto-optical Kerr effect (MOKE) measurement was demonstrated on a sample of the Au/Fe/Au heterostructure with the Fe layer of 0.35 nm thickness under Fe M-edge resonance condition. An ultrabrilliant free electron laser (FEL) in the soft X-ray range was facilitated for the detection of transient signals of resonant MOKE from the ultrathin Fe film. A variation in the Kerr rotation angle was successfully observed on the femtosecond timescale. This technique enables us to reveal the transient magnetization dynamics of such a-few-monolayer magnetic films, which promote the development of spintronic devices.

本文言語English
論文番号09TD02
ジャーナルJapanese journal of applied physics
57
9
DOI
出版ステータスPublished - 2018 9
外部発表はい

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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