Stationary topological solitons in the two-dimensional anisotropic Heisenberg model with a Skyrme term

It is shown that stationary soliton solutions do not exist in the conventional two-dimensional anisotropic Heisenberg magnet models. Introduction of a Skyrme term into the Hamiltonian makes it possible to obtain stationary topological solitons. The existence of bound states of two solitons with a to...

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Bibliographic Details
Published inPhysics letters. A Vol. 136; no. 9; pp. 485 - 488
Main Authors Bogolubskaya, A.A., Bogolubsky, I.L.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 24.04.1989
Elsevier Science
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
General theory and models of magnetic ordering
Magnetic properties and materials
Physics
Quantized spin models
Theoretical study
Heisenberg model
Soliton
Two dimensional model
Anisotropy
Hamiltonian
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Summary:It is shown that stationary soliton solutions do not exist in the conventional two-dimensional anisotropic Heisenberg magnet models. Introduction of a Skyrme term into the Hamiltonian makes it possible to obtain stationary topological solitons. The existence of bound states of two solitons with a topological charge Q t=1 is proved.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(89)90301-0