Perspective on the Vortex Mass Determination in Superconductors using Circular Dichroism

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.

5 pages, 3 figures

References in corpus (2)

• Transverse force on a vortex and vortex mass: effects of free bulk and vortex-core bound quasiparticles
• Two-fluid model analysis of the terahertz conductivity of YBaCuO samples: optimally doped, underdoped and overdoped cases

Cited by in corpus (1)

• Quantum Mechanics of an Abrikosov Vortex in Nanofabricated Pinning Potential