Time-resolved spectroscopy of spin-current emission from a magnetic insulator

Yuma Tateno; Masaya Fukami; Takaharu Tashiro; Kazuya Ando

doi:10.1103/PhysRevB.93.174423

Time-resolved spectroscopy of spin-current emission from a magnetic insulator

Yuma Tateno, Masaya Fukami, Takaharu Tashiro, Kazuya Ando

Department of Applied Physics and Physico-Informatics

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

1 Citation (Scopus)

Abstract

We demonstrate time-resolved spectroscopy of spin-current emission from a magnetic insulator using the inverse spin Hall effect (ISHE). We measured magnetic field dependence of the spin-current emission in the time domain and found that the spectral shape of the ISHE voltage changes with time. The change in the spectral shape is due to field and power dependent temporal oscillation of the spin pumping driven by parametric magnons. The observed oscillating spin-current emission driven by dipole-exchange magnons is well reproduced by a model calculation based on the S theory. In contrast, the spin-current emission driven by short-wavelength exchange magnons cannot be reproduced with this model, illustrating an important role of higher-order nonlinear effects in the spin-current emission.

Original language	English
Article number	174423
Journal	Physical Review B
Volume	93
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.93.174423
Publication status	Published - 2016 May 23

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.93.174423

Cite this

@article{a4987d0b64a14618929ba91452eaef99,

title = "Time-resolved spectroscopy of spin-current emission from a magnetic insulator",

abstract = "We demonstrate time-resolved spectroscopy of spin-current emission from a magnetic insulator using the inverse spin Hall effect (ISHE). We measured magnetic field dependence of the spin-current emission in the time domain and found that the spectral shape of the ISHE voltage changes with time. The change in the spectral shape is due to field and power dependent temporal oscillation of the spin pumping driven by parametric magnons. The observed oscillating spin-current emission driven by dipole-exchange magnons is well reproduced by a model calculation based on the S theory. In contrast, the spin-current emission driven by short-wavelength exchange magnons cannot be reproduced with this model, illustrating an important role of higher-order nonlinear effects in the spin-current emission.",

author = "Yuma Tateno and Masaya Fukami and Takaharu Tashiro and Kazuya Ando",

note = "Funding Information: This work was supported by JSPS KAKENHI Grant Nos. 26220604, 26103004, and 26600078, the Mitsubishi Foundation, the Asahi Glass Foundation, the Mizuho Foundation for the Promotion of Sciences, and the Casio Science Promotion Foundation Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = may,

day = "23",

doi = "10.1103/PhysRevB.93.174423",

language = "English",

volume = "93",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "17",

}

TY - JOUR

T1 - Time-resolved spectroscopy of spin-current emission from a magnetic insulator

AU - Tateno, Yuma

AU - Fukami, Masaya

AU - Tashiro, Takaharu

AU - Ando, Kazuya

N1 - Funding Information: This work was supported by JSPS KAKENHI Grant Nos. 26220604, 26103004, and 26600078, the Mitsubishi Foundation, the Asahi Glass Foundation, the Mizuho Foundation for the Promotion of Sciences, and the Casio Science Promotion Foundation Publisher Copyright: © 2016 American Physical Society.

PY - 2016/5/23

Y1 - 2016/5/23

N2 - We demonstrate time-resolved spectroscopy of spin-current emission from a magnetic insulator using the inverse spin Hall effect (ISHE). We measured magnetic field dependence of the spin-current emission in the time domain and found that the spectral shape of the ISHE voltage changes with time. The change in the spectral shape is due to field and power dependent temporal oscillation of the spin pumping driven by parametric magnons. The observed oscillating spin-current emission driven by dipole-exchange magnons is well reproduced by a model calculation based on the S theory. In contrast, the spin-current emission driven by short-wavelength exchange magnons cannot be reproduced with this model, illustrating an important role of higher-order nonlinear effects in the spin-current emission.

AB - We demonstrate time-resolved spectroscopy of spin-current emission from a magnetic insulator using the inverse spin Hall effect (ISHE). We measured magnetic field dependence of the spin-current emission in the time domain and found that the spectral shape of the ISHE voltage changes with time. The change in the spectral shape is due to field and power dependent temporal oscillation of the spin pumping driven by parametric magnons. The observed oscillating spin-current emission driven by dipole-exchange magnons is well reproduced by a model calculation based on the S theory. In contrast, the spin-current emission driven by short-wavelength exchange magnons cannot be reproduced with this model, illustrating an important role of higher-order nonlinear effects in the spin-current emission.

UR - http://www.scopus.com/inward/record.url?scp=84970993186&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84970993186&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.93.174423

DO - 10.1103/PhysRevB.93.174423

M3 - Article

AN - SCOPUS:84970993186

SN - 2469-9950

VL - 93

JO - Physical Review B

JF - Physical Review B

IS - 17

M1 - 174423

ER -

Time-resolved spectroscopy of spin-current emission from a magnetic insulator

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this