Te Substitution Effect in Low-Dimensional Superconductor NbSe2-xTex (x = 0, 0.1, 0.2)
The Te doped NbSe2-xTex (x=0, 0.10, 0.20) single crystals were prepared by vapor transport method and the variations of structure and superconducting properties with Te content were studied. It is found that the Te substitution increases the degree of disorder and causes sharp decrease of superconducting transition temperature (Tc). The temperature dependence of upper critical field (Hc2) of pure NbSe2 crystal can be fitted by the two-band model, and the effect of Te substitution on Hc2(T) is discussed.
Yafang Han et al.
E. Ahmed et al., "Te Substitution Effect in Low-Dimensional Superconductor NbSe2-xTex (x = 0, 0.1, 0.2)", Materials Science Forum, Vols. 546-549, pp. 2019-2022, 2007