DSpace - Tor Vergata: Item 2108/683

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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