Changes in the localization length with vanadium doping in the Gd123 structure

Abstract

The normal state behavior of the Gd123 samples doped with vanadium has been studied. A metal-insulator transition in samples has been observed. The normal state resistivity has been compared with the variable range hoping model, which shows the 2D-VRH and CG having a better agreement for our samples. The localization length is calculated, which shows a decrease with doping, and for x=0.15 this drop is significant.

Keywords

• Gd123 superconductor
• V doping
• normal state
• localization length
• conduction mechanism