Nonlinear Lorenz lemma with the influence of exchange interaction and propagation of the magnetostatic waves with higher diffraction and dispersion

Author

Rapoport, Yu.G. ; Zaspel, C.E. ; Grimalsky, V.V. ; Sanchez-Mondragon, J.

Author_Institution

Dept. of Astron. & Space Phys., T. Shevchenko Kiev Nat. Univ., Ukraine

fYear

2004

fDate

13-17 Sept. 2004

Firstpage

361

Lastpage

363

Abstract

An efficient method (nonlinear Lorenz lemma) for the derivation of a reduced 2D evolution equation for the nonlinear magnetostatic waves in ferrite films is developed. The method describes wave propagation in the media with spatial dispersion (caused by exchange interaction in ferrites). Higher linear and nonlinear terms are included in the evolution equation. Numerical computations show that nonlinear diffraction and dispersion affect considerably pulse propagation for sufficiently large input pulse amplitudes and distances from the input antenna.

Keywords

diffraction; dispersion (wave); exchange interactions (electron); ferrites; magnetic thin films; magnetostatic waves; wave propagation; exchange interaction; ferrite films; input antenna; nonlinear Lorenz lemma; nonlinear diffraction; nonlinear dispersion; nonlinear magnetostatic wave propagation; pulse amplitudes; pulse propagation; reduced 2D evolution equation; spatial dispersion; Boundary conditions; Diffraction; Ear; Elementary particle exchange interactions; Ferrite films; Frequency; Magnetic fields; Magnetostatic waves; Nonlinear equations; Optical propagation;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Telecommunication Technology, 2004. CriMico 2004. 2004 14th International Crimean Conference on

Print_ISBN

966-7968-69-3

Type

conf

DOI

10.1109/CRMICO.2004.183240

Filename

1390222