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Please use this identifier to cite or link to this item: http://hdl.handle.net/2108/683

Title: A thermodynamically-consistent theory of the ferro/paramagnetic transition
Authors: Podio-Guidugli, Paolo
Roubicek, Tomas
Tomassetti, Giuseppe
Keywords: Magnetic materials
Phase transitions
Thermodynamics of continua
Landau-Lifschitz-Gilbert equation
Heat equation with L^1 data
Issue Date: 7-Nov-2008
Abstract: We propose a continuum theory describing the evolution of magnetization and temperature in a rigid magnetic body. The theory is based on a microforce balance, an energy balance, and an entropy imbalance. We motivate the choice of a class of constitutive equations, consistent with the entropy imbalance, that appear appropriate to describe the phase transition taking place in a ferromagnet at the Curie point. By combining these constitutive equations with the balance laws, we formulate an initial-boundary value problem for the magnetization and temperature fields, and we prove existence of weak solutions.
URI: http://hdl.handle.net/2108/683
Appears in Collections:Research studies

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