Pressure effects on a dimetallic ferrimagnet [Mn(en)]3[Cr(CN)6]2 · 4H2O

Abstract We have investigated pressure effects on a dimetallic ferrimagnet [Mn(en)] 3 [Cr(CN) 6 ] 2  · 4H 2 O (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 ( T c) of 69 K at ambient pressure in the structurally characterized molecule-based magnet system. Under hydrostatic pressure, T c 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- T c molecule-based magnet.