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On the relationship between magnetostatic wave energy and dispersion characteristics in ferrite structures

,
Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, pl. Vvedenskogo 1, Fryazino, Moscow Region, 141190, Russian Federation

The energy and dispersion characteristics of a dipole spin wave in a ferrite — dielectric — metal structure are calculated. An analysis of spin wave dispersion characteristics with extreme points demonstrates how fundamental relationships among the propagation constant, phase and group velocities, Poynting vector, and power flux manifest themselves when the wavenumber changes near these points. A comparison of magnetostatic approximation results with calculations using Maxwell’s equations shows the inadequacy of the magnetostatic approximation formulas currently used for calculating the Poynting vector and power flux of dipole spin waves. A correct alternative is proposed.

Fulltext pdf (237 KB)
Fulltext is also available at DOI: 10.3367/UFNe.0181.201103c.0293
PACS: 41.20.Gz, 41.20.Jb, 75.70.−i (all)
DOI: 10.3367/UFNe.0181.201103c.0293
URL: https://ufn.ru/en/articles/2011/3/c/
000294813600003
2-s2.0-79959992629
2011PhyU...54..281V
Citation: Vashkovsky A V, Lock E H "On the relationship between magnetostatic wave energy and dispersion characteristics in ferrite structures" Phys. Usp. 54 281–290 (2011)
BibTexBibNote ® (generic)BibNote ® (RIS)Medline RefWorks
RT Journal
T1 On the relationship between magnetostatic wave energy and dispersion characteristics in ferrite structures
A1 Vashkovsky,A.V.
A1 Lock,E.H.
PB Physics-Uspekhi
PY 2011
FD 10 Mar, 2011
JF Physics-Uspekhi
JO Phys. Usp.
VO 54
IS 3
SP 281-290
DO 10.3367/UFNe.0181.201103c.0293
LK https://ufn.ru/en/articles/2011/3/c/

Received: 21st, May 2010, revised: 25th, August 2010, 15th, September 2010

Оригинал: Вашковский А В, Локк Э Г «О взаимосвязи энергетических и дисперсионных характеристик магнитостатических волн в ферритовых структурах» УФН 181 293–304 (2011); DOI: 10.3367/UFNr.0181.201103c.0293

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