Nonlinear surface magnetic polaritons in a nonuniform magnetic field |
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Authors: | S V Grimal’skii S V Koshevaya A M Resin |
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Institution: | (1) T. G. Shevchenko Kiev State University, 252601 Kiev, Ukraine |
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Abstract: | High-frequency surface magnetic polaritons of finite amplitude propagating along the interface between a ferrite and a nonlinear
insulator in a weakly nonuniform, shaft-shaped external magnetic field are investigated theoretically. The analysis is based
on employment of the variational method together with bilinear relations having the form of Lorentz’s lemma. It is shown that
the wave dispersion and the transverse profile of a wave along the field nonuniformity depend significantly on the amplitude
of the wave.
Zh. Tekh. Fiz. 68, 92–95 (September 1998) |
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