Chin. Phys. B, 2013, Vol. 22(8): 084209    DOI: 10.1088/1674-1056/22/8/084209
 ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next

# The propagation of shape changing soliton in a nonuniform nonlocal media

L. Kavithaa b c, C. Lavanyaa, S. Dhamayanthia, N. Akilaa, D. Gopid
a Department of Physics, Periyar University, Salem-636 011, India;
b The Abdus Salam International Center for Theoretical Physics, Trieste, Italy;
c Center for Nanoscience and Nanotechnology, Periyar University, Salem-636 011, India;
d Department of Chemistry, Periyar University, Salem-636 011, India
Abstract  Magnetization dynamics in uniformly magnetized ferromagnetic media is studied by using Landau-Lifshitz-Gilbert equation. The nonlinear evolution equation is integrable with site-dependent and biquadratic exchange interaction by means of Landau-Lifshitz (LL) equation which is well understood. In the present work, we construct the exact solitary solutions of the nonlinear evolution equation, particularly, we employ the modified extended tangent hyperbolic function method. We show the shape changing property of solitons for the given integrable system in the presence of damping as well as inhomogeneities.
Keywords:  solitons      classical spin models      Maxwell equations      nonlinear dynamics
Received:  19 January 2013      Revised:  25 February 2013      Accepted manuscript online:
 PACS: 42.81.Dp (Propagation, scattering, and losses; solitons) 75.10.Hk (Classical spin models) 03.50.De (Classical electromagnetism, Maxwell equations) 05.10.-a (Computational methods in statistical physics and nonlinear dynamics)
Corresponding Authors:  L. Kavitha     E-mail:  louiskavitha@yahoo.co.in

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