Magnetic and Mössbauer investigation of the photomagnetic Prussian blue analogue Na(0.32)Co[Fe(CN)6](0.74).3.4H2O: cooperative relaxation of the thermally quenched state.

Gawali-Salunke, S; Varret, F; Maurin, I; Enachescu, C; Malarova, M; Boukheddaden, K; Codjovi, E; Tokoro, H; Ohkoshi, S; Hashimoto, K

Gawali-Salunke, S; Varret, F; Maurin, I; Enachescu, C; Malarova, M; Boukheddaden, K; Codjovi, E; Tokoro, H; Ohkoshi, S; Hashimoto, K.

Afiliación

Gawali-Salunke S; Laboratoire de Magnétisme et d'Optique, CNRS-Université de Versailles Saint Quentin, 45, Avenue des Etats-Unis, 78035 Versailles Cedex, France.

J Phys Chem B ; 109(16): 8251-6, 2005 Apr 28.

Article en En | MEDLINE | ID: mdl-16851964

RESUMEN

Thanks to thermal quenching we investigated the relaxation of the metastable state of Na(0.32)Co[Fe(CN)6](0.74).3.4H2O at low temperature. A self-accelerated process has been observed in agreement with the cooperative character of the system, responsible for the large thermal hysteresis of the charge-transfer-induced spin transition. The mean-field analysis of the relaxation is discussed with respect to the equilibrium properties. A sizable deviation from mean-field behavior is observed at the beginning of the relaxation process, which might be attributed to a preliminary structural relaxation of the quenched state.

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Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Phys Chem B Asunto de la revista: QUIMICA Año: 2005 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Estados Unidos

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