Magnetocaloric effect in hexacyanochromate Prussian blue analogs

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.

4 pages, 6 figures

References in corpus (2)

• Spin-enhanced magnetocaloric effect in molecular nanomagnets
• Giant and time-dependent magnetocaloric effect in high-spin molecular magnets

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