Author/Authors :
Pan، نويسنده , , Mei-Jin Zhong، نويسنده , , Hongmei and Wang، نويسنده , , Shao_wei and Li، نويسنده , , Zhifeng and Chen، نويسنده , , Xiaoshuang and Lu، نويسنده , , Wei، نويسنده ,
Abstract :
A theoretical study on the chromium (Cr) doping effect on the crystal structure of metallic VO2 has been performed by first principles calculation based on local density approximation (LDA). The results are consistent with the experimental observations: the substitution impurity of Cr on cation site (CrV) defects are created by Cr-doping and the Cr-doping results in the shrink of the volume in the crystal unit cell. The substitution of Cr gives rise to two different VV distances and charge transfer from V to Cr.
