Open AccessPROPAGATION OF NONLINEAR MAGNETOSTATIC SURFACE WAVES ON FERROMAGNETIC FILM
Author(s) -
A. D. Boardman,
JiaShan Bao,
Qi Wang,
Cai Ying-shi,
С. А. Никитов
Publication year - 1991
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.40.1703
Subject(s) - physics , envelope (radar) , dispersion relation , surface wave , nonlinear system , ferromagnetism , condensed matter physics , dispersion (optics) , perturbation (astronomy) , wave propagation , group velocity , transverse plane , optics , quantum mechanics , telecommunications , radar , computer science , structural engineering , engineering
The wave equation for nonlinear magnctostatic surface waves (MSSW) on ferromagnetic film is derived with perturbation theory under the condition of transverse magnetisation, and its solution is found. The nonlinear dispersion relation shows that a high wave power results in a reduction of frequency band of MSSW. The variations of group velocity dispersion and nonlinear frequency shift with the wave frequency and film thickness are also studied. The results show that the bright pulse envelope solitons can not exist in our case.