Title of article :
Scattering of magnetic solitons in two dimensions
Author/Authors :
Komineas، نويسنده , , S، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
Pages :
12
From page :
223
To page :
234
Abstract :
Solitons which have the form of a vortex–antivortex pair have recently been found in the Landau–Lifshitz equation which is the standard model for the ferromagnet. We simulate numerically head-on collisions of two vortex–antivortex pairs and observe a right-angle scattering pattern. We offer a resolution of this nontrivial dynamical behavior by examining the Hamiltonian structure of the model, specifically the linear momentum of the two solitons. We further investigate the dynamics of vortices in a modified nonlinear σ-model which arises in the description of antiferromagnets. We confirm numerically that a robust feature of the dynamics is the right-angle scattering of two vortices which collide head-on. A generalization of our theory is given for this model which offers arguments towards an understanding of the observed dynamical behavior.
Journal title :
Physica D Nonlinear Phenomena
Serial Year :
2001
Journal title :
Physica D Nonlinear Phenomena
Record number :
1724308
Link To Document :
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