2003 | OriginalPaper | Buchkapitel
Is There a Need for New Models of the Spin Crossover?
verfasst von : Roman Boča, Wolfgang Linert
Erschienen in: Molecular Magnets Recent Highlights
Verlag: Springer Vienna
Enthalten in: Professional Book Archive
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The existing models of the low-spin to high-spin transition (spin crossover) are briefly reviewed. Experimental data pointing to a need of new models are displayed. A statistical model with the distribution of the solid-state cooperativeness is outlined. A modeling is shown as well as its application to a spin crossover system [Fe(bzimpy)2](C1O4)2] · 0.25H2O. This shows an abrupt spin crossover at temperature as high as 403 K with a hysteresis width of 12 K. The angled walls of the hysteresis loop can be followed by the outlined statistical model.