Spatial instability of the nonlinear ferromagnetic resonance in uniaxial films

Autor(en): Popkov, AF
Wobbeking, T
Dotsch, H
Korneev, VI
Stichwörter: ENVELOPE SOLITONS; IRON-GARNET FILMS; Physics; Physics, Applied; STRONGLY DRIVEN FERROMAGNETS
Erscheinungsdatum: 2000
Herausgeber: AMER INST PHYSICS
Journal: APPLIED PHYSICS LETTERS
Volumen: 76
Ausgabe: 17
Startseite: 2415
Seitenende: 2417
Zusammenfassung: 
The spatial instability of the nonlinear magnetization precession in uniaxial films with low magnetization is analyzed analytically and numerically solving Landau-Lifshitz equations. The foldover effect is essential in this geometry. The formation of spatial soliton-like magnetization precessions is predicted for nonuniform driving inductions exceeding the threshold value. Time-space instability boundaries of the obtained soliton-like structures are calculated. The numerical simulations show that these structures are stabilized at the boundaries of the foldover region. This behavior is in qualitative agreement with a recent experiment where a spatial pattern formation by a nonuniformly driven ferromagnetic resonance in a garnet film has been observed. (C) 2000 American Institute of Physics. [S0003-6951(00)01317-6].
ISSN: 00036951
DOI: 10.1063/1.126361

Show full item record

Page view(s)

1
Last Week
0
Last month
0
checked on Feb 26, 2024

Google ScholarTM

Check

Altmetric