Magnetism in tetragonal and cubic Mn2TiO4 single crystals

The compound Mn2TiO4 crystallizes in two different forms tetragonal and cubic phases respectively. The cubic inverse spinal can be thought of as "Mn2+(Mn2+/Ti4+)O4 and exhibits a ferrimagnetic transition with no compensation transition. The B site is partially occupied by non-magnetic Ti4+ and the magnetism is associated with an S = 5/2 network of Mn2+ ions distributed over half of the B sites and the A site. Our single crystal samples are characterised using powder and single crystal x-ray, magnetometry and heat capacity. Our tetragonal phase ferrimagnetic magnetisation transition is very sharp and ruled out any mixed magnetic ions. We propose to study the magnetism in both tetragonal and cubic phases using muon relaxation which was not previously been reported.