Ferromagnetic resonance spectra of Py deposited on (Bi1-xSbx)2Te3

S. Gupta; S. Kanai; F. Matsukura; H. Ohno

doi:10.1063/1.4974891

Ferromagnetic resonance spectra of Py deposited on (Bi_1-xSb_x)₂Te₃

S. Gupta, S. Kanai, F. Matsukura, H. Ohno

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

6 Citations (Scopus)

Abstract

We measure ferromagnetic resonance spectra of sputtered Py (20 nm) on (Bi_1-xSb_x)₂Te₃ (∼50 nm, x = 0-1) grown by molecular beam epitaxy. The linewidths of the spectra for Py on (Bi_1-xSb_x)₂Te₃ are much broader than that of Py directly deposited on a flat Si/SiO₂ substrate. We find that the broadening results from spin pumping as well as inhomogeneity in Py induced by surface roughness of underneath (Bi_1-xSb_x)₂Te₃.

Original language	English
Article number	055919
Journal	AIP Advances
Volume	7
Issue number	5
DOIs	https://doi.org/10.1063/1.4974891
Publication status	Published - 2017 May 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Ferromagnetic resonance spectra of Py deposited on (Bi1-xSbx)2Te3 ",

abstract = "We measure ferromagnetic resonance spectra of sputtered Py (20 nm) on (Bi1-xSbx)2Te3 (∼50 nm, x = 0-1) grown by molecular beam epitaxy. The linewidths of the spectra for Py on (Bi1-xSbx)2Te3 are much broader than that of Py directly deposited on a flat Si/SiO2 substrate. We find that the broadening results from spin pumping as well as inhomogeneity in Py induced by surface roughness of underneath (Bi1-xSbx)2Te3.",

author = "S. Gupta and S. Kanai and F. Matsukura and H. Ohno",

note = "Funding Information: The authors thank T. Dietl, A. Okada, and Y. Kawato for useful discussion and technical support. The work was supported in part by a Grant-in-Aid for Scientific Research from MEXT (#26103002). Publisher Copyright: {\textcopyright} 2017 Author(s).",

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T1 - Ferromagnetic resonance spectra of Py deposited on (Bi1-xSbx)2Te3

AU - Gupta, S.

AU - Kanai, S.

AU - Matsukura, F.

AU - Ohno, H.

N1 - Funding Information: The authors thank T. Dietl, A. Okada, and Y. Kawato for useful discussion and technical support. The work was supported in part by a Grant-in-Aid for Scientific Research from MEXT (#26103002). Publisher Copyright: © 2017 Author(s).

PY - 2017/5/1

Y1 - 2017/5/1

N2 - We measure ferromagnetic resonance spectra of sputtered Py (20 nm) on (Bi1-xSbx)2Te3 (∼50 nm, x = 0-1) grown by molecular beam epitaxy. The linewidths of the spectra for Py on (Bi1-xSbx)2Te3 are much broader than that of Py directly deposited on a flat Si/SiO2 substrate. We find that the broadening results from spin pumping as well as inhomogeneity in Py induced by surface roughness of underneath (Bi1-xSbx)2Te3.

AB - We measure ferromagnetic resonance spectra of sputtered Py (20 nm) on (Bi1-xSbx)2Te3 (∼50 nm, x = 0-1) grown by molecular beam epitaxy. The linewidths of the spectra for Py on (Bi1-xSbx)2Te3 are much broader than that of Py directly deposited on a flat Si/SiO2 substrate. We find that the broadening results from spin pumping as well as inhomogeneity in Py induced by surface roughness of underneath (Bi1-xSbx)2Te3.

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Ferromagnetic resonance spectra of Py deposited on (Bi_1-xSb_x)₂Te₃

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