Crystal structure effects on vortex dynamics in superconducting MgB2 thin films - dataset

Published: 15 April 2026| Version 1 | DOI: 10.17632/42k2ym76s7.1
Contributor:
Clemens Schmid

Description

This dataset contains all measurement data of graphs shown in the publication titled "Crystal structure effects on vortex dynamics in superconducting MgB2 thin films" by C. Schmid, A. Pokusinskyi, M. Gruber, C. Pfaff, T. Courtois, A. Kasatkin, K. Dumesnil, S. Mangin, T. Hauet, O. Dobrovolskiy. The publication describes MgB2 thin film samples of varying structural composition, here labelled as sample S (single crystal) and sample T (textured). The dataset contains measurements in both cases for cooling curves, resistivity vs. temperature at varying magnetic fields (RT-curves), derived values for vortex activation energies (Ueff vs. B) and current-voltage (IV) curves.

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Steps to reproduce

Experimental data from measurements on 20 nm thick MgB2 films grown on sapphire substrate via molecular beam epitaxy, one with an intermediate layer of MgO, and a capping layer of gold. A standard Quantum Design Physical Property Measurement System was used in the measurement process. For the cooling curve data, the system was cooled from 300 K to 5 K, while a current of 10 µA was applied to the film. This procedure was repeated at temperatures closer to the critical temperature while applying varying magnetic fields to obtain the RT-curve data. For the current-voltage curves the applied current was increased and the corresponding voltages measured in a four-probe setup. This was performed at varying temperatures and magnetic fields.

Institutions

Categories

Superconductivity, Superconducting Thin Films, Low-Temperature System

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