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Type: Artigo de periódico
Title: Nuclear Spin-lattice Relaxation Due To Dissipative Domain Walls
Author: Villares Ferrer A.
Caldeira A.O.
Abstract: The influence of the dissipation motion of domain walls in the nuclear spin lattice relaxation rate was studied as a function of the external magnetic field and the temperature. The soliton momentum was coupled to the momentum of the magnon thermal bath. The interactions resulted in a Brownian-like motion for the soliton centre of mass, characterized by a temperature and field-dependent diffusion and damping constants. The soliton dynamics of the double sine-Gordon (DsG) equation was demonstrated as diffusive and damped.
Rights: fechado
Identifier DOI: 10.1016/S0921-4526(02)00745-7
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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