Magnetically induced ferroelectricity in single crystalline ferrimagnet, Mn$_2$Mo$_3$O$_8$*

We present magnetization and electric polarization results on multiferroic ferrimagnet molybdate system, Mn$_2$Mo$_3$O$_8$ in pulsed magnetic fields. Mn$_2$Mo$_3$O$_8$, also known as the mineral isiemite crystallizes in a hexagonal P6${_3}mc$ space group. The magnetism is attributed to the Mn ions whereas the Mo is diamagnetic. The Mo and Mn atoms are stacked alternately along \boldface{c}-axis. The Mn ions form a hexagonal lattice and occur in octahedral and tetragonal coordination. The spins on two different Mn sites give rise to ferrimagnetism. The system orders at about 42 K accompanied by a lambda like anomaly in heat capacity. Mn$_2$Mo$_3$O$_8$ shows anisotropic magnetization with a change in slope at 40 K signaling possibly an AFM to ferrimagnet ordering. We observe magnetic field induced electric polarization in our preliminary results and an anomaly at 40 K corresponding to T$_N$.