  Tetragonal distorted spinel of CuMn2-xTixO4 (x = 0, 0.25 and 0.50) was
prepared by solid state reaction method followed by neutron diffraction, FTIR
spectroscopy, dielectric spectroscopy and magnetization measurements. The
neutron diffraction and FTIR spectroscopy provide the information regarding
phase formation. But, the magnetic susceptibility clearly shows the
ferri-magnetic order below 76K associated with meta-magnetic state which turns
to spin-glass behaviour upon Ti-substitution for Mn in CuMn2O4. In addition,
the room temperature M(H) of all the spinels are described by the Arrott's plot
for weak ferromagnetism. Further, the room temperature dielectric measurement
provides the electronic property of CuMn2O4 dominated by grain boundary effect
that is significantly increased upon Ti-substitution for Mn in CuMn2O4.
