We have investigated pressure effects on a dimetallic ferrimagnet [Mn(en)]3[Cr(CN)6]2·4H2O (en; ethylenediamine) through the magnetic measurements using a diamond anvil cell in the pressure region up to P = 4.7 GPa. This ferrimagnetic compound has an eminent high transition temperature (Tc) of 69 K at ambient pressure in the structurally characterized molecule-based magnet system. Under hydrostatic pressure, Tc linearly increases against pressure, and exceeds 130 K at P = 4.7 GPa. The amount of the saturated moment hardly changes in the considered pressure region. This pressure experiment might become a prototype of artificial material control for the high-Tc molecule-based magnet.
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