Microscopic evaluation of spin and orbital moment in ferromagnetic resonance

Yuta Ishii; Yuichi Yamasaki; Yusuke Kozuka; Jana Lustikova; Yoichi Nii; Yoshinori Onose; Yuichi Yokoyama; Masaichiro Mizumaki; Jun Ichi Adachi; Hironori Nakao; Taka Hisa Arima; Yusuke Wakabayashi

doi:10.1038/s41598-024-66139-1

Microscopic evaluation of spin and orbital moment in ferromagnetic resonance

Yuta Ishii, Yuichi Yamasaki, Yusuke Kozuka, Jana Lustikova, Yoichi Nii, Yoshinori Onose, Yuichi Yokoyama, Masaichiro Mizumaki, Jun Ichi Adachi, Hironori Nakao, Taka Hisa Arima, Yusuke Wakabayashi

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

3 Citations (Scopus)

Abstract

Time-resolved X-ray magnetic circular dichroism under the effects of ferromagnetic resonance (FMR), known as X-ray ferromagnetic resonance (XFMR) measurements, enables direct detection of precession dynamics of magnetic moment. Here we demonstrated XFMR measurements and Bayesian analyses as a quantitative probe for the precession of spin and orbital magnetic moments under the FMR effect. Magnetization precessions in two different Pt/Ni-Fe thin film samples were directly detected. Furthermore, the ratio of dynamical spin and orbital magnetic moments was evaluated quantitatively by Bayesian analyses for XFMR energy spectra around the Ni L_2,3 absorption edges. Our study paves the way for a microscopic investigation of the contribution of the orbital magnetic moment to magnetization dynamics.

Original language	English
Article number	15504
Journal	Scientific Reports
Volume	14
Issue number	1
DOIs	https://doi.org/10.1038/s41598-024-66139-1
Publication status	Published - 2024 Dec

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title = "Microscopic evaluation of spin and orbital moment in ferromagnetic resonance",

abstract = "Time-resolved X-ray magnetic circular dichroism under the effects of ferromagnetic resonance (FMR), known as X-ray ferromagnetic resonance (XFMR) measurements, enables direct detection of precession dynamics of magnetic moment. Here we demonstrated XFMR measurements and Bayesian analyses as a quantitative probe for the precession of spin and orbital magnetic moments under the FMR effect. Magnetization precessions in two different Pt/Ni-Fe thin film samples were directly detected. Furthermore, the ratio of dynamical spin and orbital magnetic moments was evaluated quantitatively by Bayesian analyses for XFMR energy spectra around the Ni L2,3 absorption edges. Our study paves the way for a microscopic investigation of the contribution of the orbital magnetic moment to magnetization dynamics.",

author = "Yuta Ishii and Yuichi Yamasaki and Yusuke Kozuka and Jana Lustikova and Yoichi Nii and Yoshinori Onose and Yuichi Yokoyama and Masaichiro Mizumaki and Adachi, {Jun Ichi} and Hironori Nakao and Arima, {Taka Hisa} and Yusuke Wakabayashi",

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doi = "10.1038/s41598-024-66139-1",

language = "English",

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T1 - Microscopic evaluation of spin and orbital moment in ferromagnetic resonance

AU - Ishii, Yuta

AU - Yamasaki, Yuichi

AU - Kozuka, Yusuke

AU - Lustikova, Jana

AU - Nii, Yoichi

AU - Onose, Yoshinori

AU - Yokoyama, Yuichi

AU - Mizumaki, Masaichiro

AU - Adachi, Jun Ichi

AU - Nakao, Hironori

AU - Arima, Taka Hisa

AU - Wakabayashi, Yusuke

PY - 2024/12

Y1 - 2024/12

N2 - Time-resolved X-ray magnetic circular dichroism under the effects of ferromagnetic resonance (FMR), known as X-ray ferromagnetic resonance (XFMR) measurements, enables direct detection of precession dynamics of magnetic moment. Here we demonstrated XFMR measurements and Bayesian analyses as a quantitative probe for the precession of spin and orbital magnetic moments under the FMR effect. Magnetization precessions in two different Pt/Ni-Fe thin film samples were directly detected. Furthermore, the ratio of dynamical spin and orbital magnetic moments was evaluated quantitatively by Bayesian analyses for XFMR energy spectra around the Ni L2,3 absorption edges. Our study paves the way for a microscopic investigation of the contribution of the orbital magnetic moment to magnetization dynamics.

AB - Time-resolved X-ray magnetic circular dichroism under the effects of ferromagnetic resonance (FMR), known as X-ray ferromagnetic resonance (XFMR) measurements, enables direct detection of precession dynamics of magnetic moment. Here we demonstrated XFMR measurements and Bayesian analyses as a quantitative probe for the precession of spin and orbital magnetic moments under the FMR effect. Magnetization precessions in two different Pt/Ni-Fe thin film samples were directly detected. Furthermore, the ratio of dynamical spin and orbital magnetic moments was evaluated quantitatively by Bayesian analyses for XFMR energy spectra around the Ni L2,3 absorption edges. Our study paves the way for a microscopic investigation of the contribution of the orbital magnetic moment to magnetization dynamics.

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Microscopic evaluation of spin and orbital moment in ferromagnetic resonance

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