Thermal Relaxation in Magnetic Materials: A Survey
Journal
Spin
Journal Volume
3
Journal Issue
2
Pages
UNSP 1330005
Date Issued
2013
Author(s)
Klik, Ivo
Abstract
This paper presents a survey of the methods of statistical physics which are applied to the problem of thermal agitation in magnetic materials. The main focus of the work is the stochastic dynamics described by the Landau-Lifshitz-Gilbert equation for which most analytic results are known, and which has been most commonly used in numerical simulations. We also present the much more recent Landau–Lifshitz–Bloch equation and the numerical calculations describing magnetization dynamics close to the Curie point. The paper is concluded by a description of the newly introduced jump-noise and of the Barkhausen jumps.
Type
journal article