Low Temperature Physics: 34, 522 (2008); https://doi.org/10.1063/1.2957004 (6 pages)
Физика Низких Температур: Том 34, Выпуск 7 (Июль 2008), c. 662-668    ( к оглавлению , назад )

Solitons in isotropic antiferromagnets: beyond a sigma model

E.G. Galkina1,2, A.Yu. Galkin3,1, and B.A. Ivanov1,4

1Institute of Magnetism, Kiev 03142, Ukraine

2Institute of Physics, Kiev 03028, Ukraine

3Institute of Metal Physics, Kiev 03142, Ukraine

4National Taras Shevchenko University of Kiev, Kiev 03127, Ukraine
E-mail: bivanov@i.com.ua

Received October 19, 2007

Аннотация

Isotropic antiferromagnets shows a reach variety of magnetic solitons with nontrivial static and dynamic properties. One-dimensional soliton elementary excitations have a periodic dispersion law. For two-dimensional case, planar antiferromagnetic vortices having nonsingular macroscopic core with the saturated magnetic moment are present. The dynamic properties of these planar antiferromagnetic vorteces are characterized by presence of a gyroforce.

PACS: 75.10.Jm Quantized spin models;
PACS: 75.10.Hk Classical spin models;
PACS: 05.45.Yv Solitons.

Ключевые слова: antiferromagnetic vortex, gyroscopic force, spin dynamic.