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Perspective on the Vortex Mass Determination in Superconductors using Circular Dichroism

Authors :
Tesař, Roman
Šindler, Michal
Lipavský, Pavel
Koláček, Jan
Kadlec, Christelle
Source :
IEEE Transactions on Applied Superconductivity ( Volume: 34, Issue: 7, October 2024)
Publication Year :
2023

Abstract

The effective mass of Abrikosov vortices in superconductors remains a challenging problem with limited experimental verification. In this paper, we present a method based on observation of the vortex mass in magnetic circular dichroism at terahertz frequencies. We demonstrate the emergence of dichroism with decreasing temperature in two YBa$_2$Cu$_3$O$_{7-\delta}$ thin films of different doping. The experimental results can be explained within a theoretical model that takes into account the vortex mass and provides an expression for the optical complex conductivity. We discuss the model parameters and show how they are obtained from the supporting experiments.<br />Comment: 5 pages, 3 figures

Details

Database :
arXiv
Journal :
IEEE Transactions on Applied Superconductivity ( Volume: 34, Issue: 7, October 2024)
Publication Type :
Report
Accession number :
edsarx.2312.00652
Document Type :
Working Paper
Full Text :
https://doi.org/10.1109/TASC.2024.3420705