2011年5月
Magnon Pumping by a Time-Dependent Transverse Magnetic Field in Ferromagnetic Insulators
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
- ,
- 巻
- 80
- 号
- 5
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1143/JPSJ.80.054602
- 出版者・発行元
- PHYSICAL SOC JAPAN
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.
- リンク情報
- ID情報
-
- DOI : 10.1143/JPSJ.80.054602
- ISSN : 0031-9015
- Web of Science ID : WOS:000290435500014