  Co doped ZnV2O4 has been investigated by Synchrotron X-ray diffraction,
Magnetization measurement and Extended X-ray absorption fine structure (EXAFS)
analysis. With Co doping in the Zn site the system moves towards the itinerant
electron limit. From Synchrotron and magnetization measurement it is observed
that there is an effect in bond lengths and lattice parameters around the
magnetic transition temperature. The EXAFS study indicates that Co ion exists
in the High spin state in Co doped ZnV2O4.
