Tunneling anomaly of superconducting films in strong magnetic fields

TL;DR

This paper investigates the tunneling density of states in superconducting films under strong magnetic fields, revealing a field-orientation-dependent minimum that aligns with recent experimental findings.

Contribution

It uncovers a previously unpredicted dependence of the DoS minimum on magnetic field orientation in superconducting films.

Findings

Identification of a DoS minimum influenced by magnetic field orientation

Agreement of theoretical prediction with recent experimental results

Insight into the paramagnetic phase of superconducting films

Abstract

We consider the tunneling Density of States (DoS) of superconducting films driven to the paramagnetic phase by the Zeeman splitting. We show that there is minimum in the DoS whose position depends on the orientation of the applied field. This dependence, not predicted by previous theoretical calculations, is in agreement with a recent experiment.