Spin Seebeck effect in a simple ferromagnet near T c: A Ginzburg-Landau approach

Hiroto Adachi; Yutaka Yamamoto; Masanori Ichioka

doi:10.1088/1361-6463/aab1d1

Spin Seebeck effect in a simple ferromagnet near T _c: A Ginzburg-Landau approach

Hiroto Adachi, Yutaka Yamamoto, Masanori Ichioka

Research Institute for Interdisciplinary Science

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

7 Citations (Scopus)

Abstract

A time-dependent Ginzburg-Landau theory is used to examine the longitudinal spin Seebeck effect in a simple ferromagnet in the vicinity of the Curie temperature T _c. It is shown analytically that the spin Seebeck effect is proportional to the magnetization near T _c, whose result is in line with the previous numerical finding. It is argued that the present result can be tested experimentally using a simple magnetic system such as EuO/Pt or EuS/Pt.

Original language	English
Article number	144001
Journal	Journal of Physics D: Applied Physics
Volume	51
Issue number	14
DOIs	https://doi.org/10.1088/1361-6463/aab1d1
Publication status	Published - Mar 12 2018

Keywords

heat current
magnon
spin Seebeck effect
spin current

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

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title = "Spin Seebeck effect in a simple ferromagnet near T c: A Ginzburg-Landau approach",

abstract = "A time-dependent Ginzburg-Landau theory is used to examine the longitudinal spin Seebeck effect in a simple ferromagnet in the vicinity of the Curie temperature T c. It is shown analytically that the spin Seebeck effect is proportional to the magnetization near T c, whose result is in line with the previous numerical finding. It is argued that the present result can be tested experimentally using a simple magnetic system such as EuO/Pt or EuS/Pt.",

keywords = "heat current, magnon, spin Seebeck effect, spin current",

author = "Hiroto Adachi and Yutaka Yamamoto and Masanori Ichioka",

note = "Funding Information: This work was financially supported by JSPS KAKENHI Grant No. 15K05151. Publisher Copyright: {\textcopyright} 2018 IOP Publishing Ltd.",

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AU - Ichioka, Masanori

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AB - A time-dependent Ginzburg-Landau theory is used to examine the longitudinal spin Seebeck effect in a simple ferromagnet in the vicinity of the Curie temperature T c. It is shown analytically that the spin Seebeck effect is proportional to the magnetization near T c, whose result is in line with the previous numerical finding. It is argued that the present result can be tested experimentally using a simple magnetic system such as EuO/Pt or EuS/Pt.

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