Parametric amplification of spin wave envelope solitons in ferromagnetic films by parallel pumping

Author

Kalinikos, Boris A. ; Kostylev, Mikhail P.

Author_Institution

St. Petersburg Electrotech. Univ., Russia

Volume

33

Issue

5

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

3445

Lastpage

3447

Abstract

A theory for parametric amplification of spin wave envelope solitons in ferromagnetic film by parallel pumping is suggested. A system of nonlinear equations describing evolution of nonlinear wave packets both in time and space domains is derived. Analysis shows that an effective amplification of spin wave solitons is possible in a transient regime when amplitudes of the parametrically excited waves are in growth. Numerical estimations of the experimental parameters necessary to achieve amplification of backward volume wave solitons in yttrium iron garnet films are given

Keywords

garnets; magnetic microwave devices; magnetic thin films; magnetostatic waves; microwave parametric amplifiers; nonlinear equations; solitons; spin waves; transient analysis; yttrium compounds; YFe5O12; YIG; YIG films; backward volume wave solitons; carrier spin wave parametric instability; ferromagnetic films; garnet films; nonlinear equations; nonlinear wave packets; numerical estimations; parallel pumping; parametric amplification; spin wave envelope solitons; transient regime; Garnet films; Iron; Magnetic films; Microstrip antennas; Microstrip components; Microwave antennas; Nonlinear equations; Solitons; Surface waves; Transient analysis; Yttrium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.617972

Filename

617972