Giant magnetostructural coupling in Gd2/3Ca 1/3MnO3

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We report high magnetic field magnetostructural studies on Gd 2/3Ca1/3MnO3 single crystals. A giant linear magnetostrictive effect is observed in a wide temperature range (T < 120 K). Above 25 K a large hysteresis is seen reflecting the Mn magnetic moments ordering. At lower temperature (T &a...

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Detalles Bibliográficos
Autores principales: Correa, V.F., Sänger, N., Jorge, G., Nieva, G., Haberkorn, N.
Formato: Documento de conferencia publishedVersion
Lenguaje:Inglés
Publicado: 2009
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17426588_v167_n_p_Correa
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:We report high magnetic field magnetostructural studies on Gd 2/3Ca1/3MnO3 single crystals. A giant linear magnetostrictive effect is observed in a wide temperature range (T < 120 K). Above 25 K a large hysteresis is seen reflecting the Mn magnetic moments ordering. At lower temperature (T < 15 K), a rather complicated field dependence arising from the competition between the Mn and Gd magnetic sublattices is observed. The relevance of the Gd ions in the low temperature behavior is further corroborated by specific heat experiments. © 2009 IOP Publishing Ltd.

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