Topological defects and magnetization processes for the triangular lattice of ising particles with an antiferromagnetic interaction

Autor: V. E. Kireev, Boris A. Ivanov
Rok vydání: 2009
Předmět:
Zdroj: JETP Letters. 90:750-753
ISSN: 1090-6487
0021-3640
DOI: 10.1134/s0021364009240035
Popis: For the frustrated triangular lattice of Ising magnetic moments with an antiferromagnetic interaction, which is in a state with two sublattices, a new type of topological defects with zero energy in the approximation of the interaction between only the nearest-neighbors has been found. These defects have a nonzero magnetic moment, and the magnetization in a low field occurs via the formation of a system of such defects. These properties are valid for a 2D superstructure in the form of a triangular lattice of single-domain magnetic particles with perpendicular anisotropy and dipole coupling.
Databáze: OpenAIRE