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Title: Excitation modes of vortices in submicron magnetic disks
Author: Zarzuela Fernández, Ricardo
Chudnovsky, Eugene M., 1948-
Tejada Palacios, Javier
Keywords: Superconductivitat
Propietats magnètiques
Spin (Física nuclear)
Teoria quàntica
Excitació nuclear
Magnetic properties
Nuclear spin
Quantum theory
Nuclear excitation
Issue Date: 9-Jan-2013
Publisher: American Physical Society
Abstract: Classical and quantum theory of spin waves in the vortex state of a mesoscopic submicron magnetic disk have been developed with account of the finite mass density of the vortex. Oscillations of the vortex core resemble oscillations of a charged string in a potential well in the presence of the magnetic field. A conventional gyrotropic frequency appears as a gap in the spectrum of spin waves of the vortex. The mass of the vortex has been computed, and the result agrees with experimental findings. The finite vortex mass generates a high-frequency branch of spin waves. The effects of an external magnetic field and dissipation have been addressed.
Note: Reproducció del document publicat a:
It is part of: Physical Review B, 2013, vol. 87, num. 1, p. 014413-1 -014413-11
Related resource:
ISSN: 1098-0121
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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