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Vacancy-driven magnetocaloric effect in Prussian blue analogues

Marco Evangelisti·Esperanca Manuel·Marco Affronte·Masashi Okubo·Cyrille Train·Michel Verdaguer
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Abstract

We experimentally show that the magnetocaloric properties of molecule-based Prussian blue analogues can be adjusted by controlling during the synthesis the amount of intrinsic vacancies. For Cs_xNi^II_4[Cr^III(CN)_6]_(8+x)/3}, we find indeed that the ferromagnetic phase transition induces significantly large magnetic entropy changes, whose maxima shift from 68 K to 95 K by varying the number of [Cr^III(CN)_6]^3- vacancies, offering an unique tunability of the magnetocaloric effect in this complex.

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Marco Evangelisti, Esperanca Manuel, Marco Affronte, Masashi Okubo, Cyrille Train, Michel Verdaguer. 2006-05-09. Vacancy-driven magnetocaloric effect in Prussian blue analogues. https://doi.org/10.1016/j.jmmm.2007.03.038

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