Magnetic and structural transitions in CaMn sub(0.96)Mo sub(0.04)O sub(3)

The magnetic, transport and elastic properties of CaMn sub(0.96)Mo sub(0.04)O sub(3) polycrystal are reported. The magnetic data of the paramagnetic region point to the magnetic polarons. The transition from the paramagnetic state into the antiferromagnetic state of G-type occurs near 93 K, the crystal orthorhombic structure being unchanged. The transition from the paramagnetic orthorhombic phase into the C-type antiferro-magnetic monoclinic phase is revealed at about 130-140 K, the transition taking place in small regions of the sample.