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Magnetocaloric effect in hexacyanochromate Prussian blue analogs

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

We report on the magnetocaloric properties of two molecule-based hexacyanochromate Prussian blue analogs, nominally CsNi[Cr(CN)_6](H_2O) and Cr_3[Cr(CN)_6]_2x12(H_2O). The former orders ferromagnetically below Tc=90 K, whereas the latter is a ferrimagnet below Tc=230 K. For both, we find significantly large magnetic entropy changes DSm associated to the magnetic phase transitions. Notably, our studies represent the first attempt to look at molecule-based materials in terms of the magnetocaloric effect for temperatures well above the liquid helium range.

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Esperanca Manuel, Marco Evangelisti, Marco Affronte, Masashi Okubo, Cyrille Train, Michel Verdaguer. 2006-02-24. Magnetocaloric effect in hexacyanochromate Prussian blue analogs. https://doi.org/10.1103/physrevb.73.172406

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