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 Shin; Iwao Matsuda

doi:10.7567/JJAP.57.09TD02

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

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

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.

Original language	English
Article number	09TD02
Journal	Japanese journal of applied physics
Volume	57
Issue number	9
DOIs	https://doi.org/10.7567/JJAP.57.09TD02
Publication status	Published - 2018 Sep
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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Yamamoto, S., Kubota, Y., Yamamoto, K., Takahashi, Y., Maruyama, K., Suzuki, Y., Hobara, R., Fujisawa, M., Oshima, D., Owada, S., Togashi, T., Tono, K., Yabashi, M., Hirata, Y., Yamamoto, S., Kotsugi, M., Wadati, H., Kato, T., Iwata, S., ... Matsuda, I. (2018). Femtosecond resonant magneto-optical Kerr effect measurement on an ultrathin magnetic film in a soft X-ray free electron laser. Japanese journal of applied physics, 57(9), [09TD02]. https://doi.org/10.7567/JJAP.57.09TD02

Femtosecond resonant magneto-optical Kerr effect measurement on an ultrathin magnetic film in a soft X-ray free electron laser. / Yamamoto, Shingo; Kubota, Yuya; Yamamoto, Kohei; Takahashi, Yoshinobu; Maruyama, Kohei; Suzuki, Yuta; Hobara, Rei; Fujisawa, Masami; Oshima, Daiki; Owada, Shigeki; Togashi, Tadashi; Tono, Kensuke; Yabashi, Makina; Hirata, Yasuyuki; Yamamoto, Susumu; Kotsugi, Masato; Wadati, Hiroki; Kato, Takeshi; Iwata, Satoshi; Shin, Shik; Matsuda, Iwao.

In: Japanese journal of applied physics, Vol. 57, No. 9, 09TD02, 09.2018.

Research output: Contribution to journal › Article › peer-review

Yamamoto, S, Kubota, Y, Yamamoto, K, Takahashi, Y, Maruyama, K, Suzuki, Y, Hobara, R, Fujisawa, M, Oshima, D, Owada, S, Togashi, T, Tono, K, Yabashi, M, Hirata, Y, Yamamoto, S, Kotsugi, M, Wadati, H, Kato, T, Iwata, S, Shin, S & Matsuda, I 2018, 'Femtosecond resonant magneto-optical Kerr effect measurement on an ultrathin magnetic film in a soft X-ray free electron laser', Japanese journal of applied physics, vol. 57, no. 9, 09TD02. https://doi.org/10.7567/JJAP.57.09TD02

Yamamoto, Shingo ; Kubota, Yuya ; Yamamoto, Kohei ; Takahashi, Yoshinobu ; Maruyama, Kohei ; Suzuki, Yuta ; Hobara, Rei ; Fujisawa, Masami ; Oshima, Daiki ; Owada, Shigeki ; Togashi, Tadashi ; Tono, Kensuke ; Yabashi, Makina ; Hirata, Yasuyuki ; Yamamoto, Susumu ; Kotsugi, Masato ; Wadati, Hiroki ; Kato, Takeshi ; Iwata, Satoshi ; Shin, Shik ; Matsuda, Iwao. / Femtosecond resonant magneto-optical Kerr effect measurement on an ultrathin magnetic film in a soft X-ray free electron laser. In: Japanese journal of applied physics. 2018 ; Vol. 57, No. 9.

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abstract = "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.",

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

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AU - Yamamoto, Shingo

AU - Kubota, Yuya

AU - Yamamoto, Kohei

AU - Takahashi, Yoshinobu

AU - Maruyama, Kohei

AU - Suzuki, Yuta

AU - Hobara, Rei

AU - Fujisawa, Masami

AU - Oshima, Daiki

AU - Owada, Shigeki

AU - Togashi, Tadashi

AU - Tono, Kensuke

AU - Yabashi, Makina

AU - Hirata, Yasuyuki

AU - Yamamoto, Susumu

AU - Kotsugi, Masato

AU - Wadati, Hiroki

AU - Kato, Takeshi

AU - Iwata, Satoshi

AU - Shin, Shik

AU - Matsuda, Iwao

PY - 2018/9

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AB - 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.

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

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