Effect of Co and Mg doping at Cu site on structural, magnetic and dielectric properties of α-CuVO.

We have studied the effect of doping of both magnetic (Co) and nonmagnetic (Mg) ions at the Cu site on phase transition in polycrystalline α-CuVOthrough structural, magnetic, and electrical measurements. X-ray diffraction reveals that Mg doping triggers an onset of- to-phase structural transition in CuMgVOabove a critical Mg concentration= 0.15, and both the phases coexist up to= 0.