Titanium-Vanadium Binary Alloys

Abstract

Ti-V has played a dominant role in the early development of type-II superconductivity. Since the late 1950’s when the results of transition temperature measurements were first reported, Ti-V has been subjected to both critical field and critical current measurement. The alloy has been investigated in both bulk and thin-film form, in the non-equilibrium rapidly-quenched state, and in equilibrium and aged conditions. Measurements of superconducting transition temperature have been made within the context of an argument over the possible existence of a magnetic, non-phonon-moderated mechanism for electron-electron coupling. The results of measurements of lower and upper critical fields, and flux-flow resistivity, have aided in the development of extensions of the GINZBURG-LANDAU-ABRIK0S0V-G0R’KOV (GLAG) theory into the realm of the paramagnetic mixed state, and have helped in defining the order of the s/n transition in extreme type-II superconductors.