FERROMAGNETS WITH EDDY CURRENTS AND PINNING EFFECTS: THEIR THERMODYNAMICS AND ANALYSIS

0359182 - ÚT 2012 RIV SG eng J - Journal Article
Roubíček, Tomáš - Tomassetti, G.
FERROMAGNETS WITH EDDY CURRENTS AND PINNING EFFECTS: THEIR THERMODYNAMICS AND ANALYSIS.
Mathematical Models and Methods in Applied Sciences. Roč. 21, č. 1 (2011), s. 29-55. ISSN 0218-2025. E-ISSN 1793-6314
R&D Projects: GA ČR GA106/09/1573
Institutional research plan: CEZ:AV0Z20760514
Keywords : micromagnetics * gilbert equation * heat equation
Subject RIV: BA - General Mathematics
Impact factor: 1.635, year: 2011
http://www.worldscinet.com/m3as/21/2101/S0218202511004976.html

Existence of weak solutions is proved for a system of nonlinear parabolic equations/inequalities describing evolution of magnetization, temperature, magnetic field, and electric field in electrically-conductive unsaturated ferromagnets. The system is derived from a recently-proposed thermodynamically-consistent continuum theory for the ferro/paramagnetic transition. Besides the standard viscous-like damping, dissipation due to eddy currents and domain-wall pinning is considered.
Permanent Link: http://hdl.handle.net/11104/0197019