Normal Modes and Soliton Resonance for Vortices in 2D
B. A. Ivanov, A. K. Kolezhuk
G. M. Wysin
Department of Physics, Kansas State University,
Manhattan, KS 66506-2601
Wed Sep 6 18:52:18 CDT 1995
Magnon modes in the presence of solitons (vortices) in
two-dimensional (2D) easy-plane antiferromagnets are studied.
The vortex-magnon scattering matrix is obtained numerically.
The analysis shows the presence of a new localized mode
with a well-defined frequency determined by the
strength of the anisotropy. It may be possible to
observe this mode in resonance experiments for quasi-2D
magnetic materials with a finite density of vortices.
PACS numbers: 75.10Hk, 75.30.Ds, 75.40Gb, 75.50Ee
Physical Review Letters
This preprint also available in RevTeX. (A zipped file including postscript figures).
Gary M Wysin
Wed Sep 6 18:51:57 CDT 1995