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Title: Magnon Pumping by a Time-Dependent Transverse Magnetic Field in Ferromagnetic Insulators
Authors: Nakata, Kouki
Tatara, Gen
Author's alias: 仲田, 光樹
Keywords: magnon pumping
magnon current
magnon source term
Issue Date: Apr-2011
Publisher: The Physical Society of Japan
Journal title: Journal of the Physical Society of Japan
Volume: 80
Thesis number: 054602
Abstract: The magnon pumping effect in ferromagnetic insulators under an external time-dependent transverse magnetic field is theoretically studied. Generation of a magnon current is discussed by calculating the magnon source term in the spin continuity equation. This term represents the non-conservation of magnons arising from an applied transverse magnetic field. The magnon source term has a resonance structure as a function of the angular frequency of the transverse field, and this fact is useful to enhance the pumping effect.
Rights: Copyright © 2011 The Physical Society of Japan
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
DOI(Published Version): 10.1143/JPSJ.80.054602
Appears in Collections:Journal Articles

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