Title of article :
Dynamic and static excitations of a classical discrete anisotropic Heisenberg ferromagnetic spin chain
Author/Authors :
Lakshmanan، نويسنده , , K. M. Lal Saxena، نويسنده , , Avadh، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Using Jacobi elliptic function addition formulas and summation identities we obtain several static and moving periodic soliton solutions of a classical anisotropic, discrete Heisenberg spin chain with and without an external magnetic field. We predict the dispersion relations of these nonlinear excitations and contrast them with that of magnons and relate these findings to the materials realized by a discrete spin chain. As limiting cases, we discuss different forms of domain wall structures and their properties.
Keywords :
Peierls–Nabarro barrier , Solitons , Nonlinear excitations , spin chain , Anisotropic Heisenberg ferromagnetic chain
Journal title :
Physica D Nonlinear Phenomena
Journal title :
Physica D Nonlinear Phenomena