Magnetoelectric effect in superconductors with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>d</mml:mi></mml:math>-wave magnetization

Abstract

We report on a study of the interplay between the supercurrent and spin-polarization in a two-dimensional superconducting system in the presence of a $d$-wave symmetric antiferromagnetic exchange interaction (altermagnetism). It is demonstrated that the supercurrent exhibits a transverse contribution in the presence of both constant and momentum-dependent exchange interactions. We also discuss the analog of the Edelstein effect for such material, showing that the induced spin polarization is quadratic in the supercurrent and $d$-wave symmetric.

Topics & Concepts