Sputtering Current Driven Growth & Transport Characteristics of Superconducting Ti40V60 Alloy Thin Films

Abstract

The room temperature growth, characterization, and electrical transport properties of magnetron sputtered superconducting Ti40V60 alloy thin films are presented. The films exhibit low surface roughness and tunable transport properties. As the sputtering current increases, the superconducting transition move towards higher temperatures. Rietveld refinement of two dimensional XRD (2D XRD) pattern reveals the presence of stress in the films, which shifts from tensile to compressive as the sputtering current increases. Additionally, the crystallite size of the films increases with higher sputtering currents. The films exhibit a strong preferential orientation, contributing to their texturing. The crystallite size and texturing are found to be correlated with the superconducting transition temperature (TC) of the films. As the crystallite size and texturing increase, the TC of the films also rises.

References in corpus (6)

• Phase diagram of a strongly disordered s-wave superconductor, NbN, close to the metal-insulator transition
• Spin-fluctuations in Ti${}_{60}$V${}_{40}$ alloy and its influence on the superconductivity
• Enhanced superconductivity and superconductor to insulator transition in nano-crystalline molybdenum thin films
• Enhancement of functional properties of V${}_{0.6}$Ti${}_{0.4}$ alloy superconductor by the addition of yttrium
• Superconducting transition temperatures of pure vanadium and vanadium-titanium alloys in the presence of dynamical electronic correlations
• Negative substrate bias induced modifications of the physical properties of DC sputter deposited nano-crystalline Mo thin films

Cited by in corpus (3)

• Growth Optimization of MoSi Thin Film and Measurement of Transport Critical Current Density of its Meander Structure
• Effect of Underlayer Induced Charge Carrier Substitution on the Superconductivity of Ti40V60 Alloy Thin Films
• Effect of Deposition Pressure on the Superconductivity of Ti40V60 Alloy Thin Films