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BIBTEX RIS

Magnetic and Mössbauer Investigation of the Photomagnetic Prussian Blue Analogue Na 0.32 Co[Fe(CN) 6 ] 0.74 ·3.4H 2 O: Cooperative Relaxation of the Thermally Quenched State

2005; American Chemical Society; Volume: 109; Issue: 16 Linguagem: Inglês

10.1021/jp044739x

ISSN

1520-6106

Autores

Sunita Salunke‐Gawali, F. Varret, Isabelle Maurin, Cristian Enachescu, Miroslava Matiková Maľarová, Kamel Boukheddaden, Épiphane Codjovi, Hiroko Tokoro, Shin‐ichi Ohkoshi, Kazuhito Hashimoto,

Tópico(s)

Lanthanide and Transition Metal Complexes

Resumo

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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