Modelling shape-memory effects in ferromagnetic alloys

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Física
dc.contributor	Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials
dc.contributor.author	Gebbia, Jonathan Fernando
dc.contributor.author	Lloveras Muntané, Pol Marcel
dc.contributor.author	Planes Vila, Antoni
dc.contributor.author	Castán Vidal, Teresa
dc.contributor.author	Saxena, Avadh
dc.date	2015-07-21
dc.identifier.citation	Gebbia, J.F., Lloveras, P., Planes, A., Castán, T., Saxena, A. Modelling shape-memory effects in ferromagnetic alloys. "Shape memory and superelasticity", 21 Juliol 2015, vol. 1, núm. 3, p. 347-358.
dc.identifier.citation	2199-384X
dc.identifier.citation	10.1007/s40830-015-0025-0
dc.identifier.uri	http://hdl.handle.net/2117/86833
dc.language.iso	eng
dc.publisher	Springer
dc.relation	http://dx.doi.org/10.1007/s40830-015-0025-0
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Física::Electromagnetisme::Magnetisme
dc.subject	Àrees temàtiques de la UPC::Enginyeria dels materials
dc.subject	Magnetism
dc.subject	Ferromagnetism
dc.subject	Magnetisme
dc.subject	Ferromagnetisme
dc.title	Modelling shape-memory effects in ferromagnetic alloys
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	We develop a combined Ginzburg–Landau/micromagnetic model dealing with conventional and magnetic shape-memory properties in ferromagnetic shape-memory materials. The free energy of the system is written as the sum of structural, magnetic and magnetostructural contributions. We first analyse a mean field linearized version of the model that does not take into account long-range terms arising from elastic compatibility and demagnetization effects. This model can be solved analytically and in spite of its simplicity allows us to understand the role of the magnetostructural term in driving magnetic shape-memory effects. Numerical simulations of the full model have also been performed. They show that the model is able to reproduce magnetostructural microstructures reported in magnetic shape-memory materials such as Ni2MnGa as well as conventional and magnetic shape-memory behaviour.

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