Raman spectroscopy and magnetic properties of KMCr(CN)6 under pressure

We study the effect of pressure on Raman spectra as well on magnetic properties of molecule-based magnets KNiCr(CN)(6) and KMnCr(CN)(6). The effect of pressure on the nu[C equivalent to N] vibration band which is located in the 2100-2200 cm(-1) spectral range is relatively weak. Hydrostatic pressure has small almost a negligible effect on the Curie temperature of ferromagnetic KNiCr(CN)(6) while leads to a pronounced reversible Curie temperature increase occurrence of new magnetic phase under pressure in the case of KMnCr(CN)(6). Applied pressure affects magnetization curves only marginally. All pressure-induced changes are reversible.