Magnetization Studies on Superconducting VanadiumGallium

Articles you may be interested in Electrical resistivity study of La, B doped nanocrystalline superconducting vanadium nitride Nuclear magnetic resonance studies on the surface magnetism of vanadium ultrafine particles (abstract) The temperature dependence of the critical fields of VaGa has been measured up to 70 kO~ ~sing ac and dc magnetization techniques. For a material with a transition width of 26 mdeg at a transItion temperature , T., of 14.19°K, one calculates from the slope (dHe2/dT=-43.~ kOe/deg) a~d curvature of the Hc2 vs T curve, the Ginzburg-Landau parameter, K=40±2, the Pault paramagnetism parameter a= 2.28±0.04, and the spin-orbit scattering constant Aso=0.6±O.1. No evidence for H.a was detected and the experimentally difficult upper limit to Hel appears to be about three times as large as calculated from the theories.