BRIGHT AND DARK SPIN-WAVE ENVELOPE SOLITONS IN MAGNETIC-FILMS

被引：86

作者：

SLAVIN, AN ^{[1
]}

ROJDESTVENSKI, IV ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO, LONDON N6A 3K7, ONTARIO, CANADA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1994年 / 30卷 / 01期

关键词：

D O I：

10.1109/20.272513

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The properties of ''bright'' and ''dark'' spin wave envelope solitons in dielectric magnetic films are analyzed. It is shown that the nonlinear mechanism responsible for spin wave envelope soliton formation in films is a four-wave interaction between linearly excited spin waves. The coefficients of this interaction are calculated in the case of a tangentially magnetized magnetic film by means of classical Hamiltonian formatism for spin waves. Results of this rigorous calculation are compared with the results of the approximate calculation done by means of the ''method of envelopes.'' Durations of ''bright'' and ''dark'' magnetostatic wave envelope solitons are calculated and compared to the results of experiments performed in tangentially magnetized yttrium-iron garnet (YIG) films.

引用

页码：37 / 45

页数：9

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