Origin of magnetic and magnetoelastic tweedlike precursor modulations in ferroic materials

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Título:	Origin of magnetic and magnetoelastic tweedlike precursor modulations in ferroic materials
Autor/a:	Saxena, A. (Avadh); Castán i Vidal, Maria Teresa; Planes Vila, Antoni; Porta Tena, Marcel; Kishi, Y.; Lograsso, T. A.; Viehland, D.; Wuttig, Matthias; De Graef, Marc
Otros autores:	Universitat de Barcelona
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.
Materia(s):	-Materials ferromagnètics -Termodinàmica -Transformacions de fase (Física estadística) -Ferromagnetic materials -Thermodynamics -Phase transitions
Derechos:	(c) American Physical Society, 2004
Tipo de documento:	Artículo Artículo - Versión publicada
Editor:	American Physical Society
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Porta Tena, Marcel; Castán i Vidal, Maria Teresa; Lloveras, Pol; Saxena, A. (Avadh); Planes Vila, Antoni

Porta Tena, Marcel; Castán i Vidal, Maria Teresa; Planes Vila, Antoni; Saxena, A. (Avadh)

Porta Tena, Marcel; Castán i Vidal, Maria Teresa; Lloveras, Pol; Planes Vila, Antoni; Saxena, A. (Avadh)

Lloveras, Pol; Castán i Vidal, Maria Teresa; Porta Tena, Marcel; Planes Vila, Antoni; Saxena, A. (Avadh)

Porta Tena, Marcel; Castán i Vidal, Maria Teresa; Lloveras, Pol; Saxena, A. (Avadh); Planes Vila, Antoni

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