Superconducting magnetoelectric effects in mesoscopic hybrid structures

TL;DR

This paper presents a formalism for supercurrent-induced magnetization in noncentrosymmetric superconductors, highlighting potential applications in quantum computing and spintronics, and explores creating Majorana modes via this effect.

Contribution

It introduces a simple formalism to calculate supercurrent-induced magnetization in various noncentrosymmetric superconductors, linking it to Majorana mode manipulation.

Findings

Supercurrent can induce magnetization in noncentrosymmetric superconductors.

The formalism applies to multiband and layered superconductors.

Potential for creating and controlling Majorana zero modes.

Abstract

In superconductors that lack inversion symmetry, a supercurrent flow can lead to nondissipative magnetoelectric effects. We offer a straightforward formalism to obtain a supercurrent-induced magnetization in superconductors with broken inversion symmetry, which may have orbital, layer, sublattice, or valley degrees of freedom, multiband noncentrosymmetric superconductors. The nondissipative magnetoelectric effect may find applications in fabricating quantum computation platforms or efficient superconducting spintronic devices. We explore how the current-induced magnetization can be employed to create and manipulate Majorana zero modes in a simple hybrid structure.