Open AccessSoliton Scattering on Impurities with Modified Exchange Interactions in Anisotropic Ferromagnetic Chains
Author(s) -
M. T. Primatarowa,
R. S. Kamburova
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1762/1/012014
Subject(s) - soliton , condensed matter physics , ferromagnetism , anisotropy , impurity , physics , scattering , spin (aerodynamics) , plane (geometry) , exchange interaction , chain (unit) , quantum mechanics , nonlinear system , geometry , mathematics , thermodynamics
The soliton propagation in an anisotropic ferromagnetic chain where the exchange interactions of an impurity spin with its neighbors are modified is investigated. We considered easy-axis anisotropy of the chain which leads to the formation of bright soliton solutions. The character of the soliton-impurity interaction is different when the exchange coupling of the spin is modified in the x,y-plane or in the z-direction. Our results show that the action of the defect depends on the soliton wave number in a complicated manner and for large velocities becomes significant. A comparison with the soliton dynamics in the presence of point defects is made.