Superconducting monolayer deposited on substrate: effects of the spin-orbit coupling induced by proximity effects

TL;DR

This paper explores how proximity-induced spin-orbit coupling affects the critical temperature and doping dependence of superconducting monolayers on substrates, revealing tunable superconducting properties.

Contribution

It demonstrates that spin-orbit coupling can be used to tune the critical temperature and doping level of superconducting monolayers with s-wave or d-wave pairing.

Findings

Critical temperatures can be adjusted by spin-orbit coupling.

The maximum $T_c$ location can shift from half-filling to other doping regimes.

Spin-orbit effects enable control over superconducting properties.

Abstract

The spin-orbit coupling can lead to exotic states of matter and unexpected behavior of the system properties. In this paper, we investigate the influence of spin-orbit coupling induced by proximity effects on a monolayer of superconductor (with s-wave or d-wave pairing) placed on an insulating bulk. We show that the critical temperatures $T_{c}$ of the superconducting states can be tuned by the spin-orbit coupling both in the case of on-site and inter-site pairing. Moreover, we discuss a possibility of changing the location of the maximal $T_{c}$ from the half-filling into the underdoped or overdoped regimes.