Origin of magnetic and magnetoelastic tweedlike precursor modulations in ferroic materials

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RECERCAT Home > Universitat de Barcelona > Física Quàntica i Astrofísica > Articles publicats en revistes (Física Quàntica i Astrofísica) > View document

To access the full text documents, please follow this link: http://hdl.handle.net/2445/12834

dc.contributor	Universitat de Barcelona
dc.contributor.author	Saxena, A. (Avadh)
dc.contributor.author	Castán i Vidal, Maria Teresa
dc.contributor.author	Planes Vila, Antoni
dc.contributor.author	Porta Tena, Marcel
dc.contributor.author	Kishi, Y.
dc.contributor.author	Lograsso, T. A.
dc.contributor.author	Viehland, D.
dc.contributor.author	Wuttig, Matthias
dc.contributor.author	De Graef, Marc
dc.date	2010-06-11T09:51:34Z
dc.date	2010-06-11T09:51:34Z
dc.date	2004
dc.identifier.citation	0031-9007
dc.identifier.citation	516605
dc.identifier.uri	http://hdl.handle.net/2445/12834
dc.format	4 p.
dc.format	application/pdf
dc.language.iso	eng
dc.publisher	American Physical Society
dc.relation	Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.92.197203
dc.relation	Physical Review Letters, 2004, vol. 92, núm. 19, p. 197203-1-197203-4
dc.relation	http://dx.doi.org/10.1103/PhysRevLett.92.197203
dc.rights	(c) American Physical Society, 2004
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Materials ferromagnètics
dc.subject	Termodinàmica
dc.subject	Transformacions de fase (Física estadística)
dc.subject	Ferromagnetic materials
dc.subject	Thermodynamics
dc.subject	Phase transitions
dc.title	Origin of magnetic and magnetoelastic tweedlike precursor modulations in ferroic materials
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.description.abstract	Based on experimental observations of modulated magnetic patterns in a Co0.5Ni0.205Ga0.295 alloy, we propose a model to describe a (purely) magnetic tweed and a magnetoelastic tweed. The former arises above the Curie (or Nel) temperature due to magnetic disorder. The latter results from compositional fluctuations coupling to strain and then to magnetism through the magnetoelastic interaction above the structural transition temperature. We discuss the origin of purely magnetic and magnetoelastic precursor modulations and their experimental thermodynamic signatures.

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