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Title: Theory of unidirectional spin heat conveyer

Abstract

We theoretically investigate the unidirectional spin heat conveyer effect recently reported in the literature that emerges from the Damon-Eshbach spin wave on the surface of a magnetic material. We develop a simple phenomenological theory for heat transfer dynamics in a coupled system of phonons and the Damon-Eshbach spin wave, and demonstrate that there arises a direction-selective heat flow as a result of the competition between an isotropic heat diffusion by phonons and a unidirectional heat drift by the spin wave. The phenomenological approach can account for the asymmetric local temperature distribution observed in the experiment.

Authors:
;  [1]
  1. Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)
Publication Date:
OSTI Identifier:
22410020
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ASYMMETRY; DIFFUSION; HEAT; HEAT FLUX; HEAT TRANSFER; MAGNETIC MATERIALS; PHONONS; SPIN; SPIN WAVES; SURFACES; TEMPERATURE DISTRIBUTION

Citation Formats

Adachi, Hiroto, E-mail: adachi.hiroto@jaea.go.jp, and Maekawa, Sadamichi. Theory of unidirectional spin heat conveyer. United States: N. p., 2015. Web. doi:10.1063/1.4908019.
Adachi, Hiroto, E-mail: adachi.hiroto@jaea.go.jp, & Maekawa, Sadamichi. Theory of unidirectional spin heat conveyer. United States. doi:10.1063/1.4908019.
Adachi, Hiroto, E-mail: adachi.hiroto@jaea.go.jp, and Maekawa, Sadamichi. Thu . "Theory of unidirectional spin heat conveyer". United States. doi:10.1063/1.4908019.
@article{osti_22410020,
title = {Theory of unidirectional spin heat conveyer},
author = {Adachi, Hiroto, E-mail: adachi.hiroto@jaea.go.jp and Maekawa, Sadamichi},
abstractNote = {We theoretically investigate the unidirectional spin heat conveyer effect recently reported in the literature that emerges from the Damon-Eshbach spin wave on the surface of a magnetic material. We develop a simple phenomenological theory for heat transfer dynamics in a coupled system of phonons and the Damon-Eshbach spin wave, and demonstrate that there arises a direction-selective heat flow as a result of the competition between an isotropic heat diffusion by phonons and a unidirectional heat drift by the spin wave. The phenomenological approach can account for the asymmetric local temperature distribution observed in the experiment.},
doi = {10.1063/1.4908019},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 17,
volume = 117,
place = {United States},
year = {2015},
month = {5}
}