Low-temperature conductivity of gadolinium sulfides

详细

In samples of GdS_x (x = 1.475–2) of various compositions, the conductivity temperature dependences are investigated for the case of direct current in the low-temperature region (4.2–225 K). The presence of the activation and activationless hopping mechanisms of charge transport over the band gap of the samples of GdS_x phases is established. The parameters of localized states in GdS_x are determined.