Andreev reflection on the p-wave altermagnet-superconductor junctions

Salehi, Morteza

doi:10.47176/ijpr.25.1.12038

Andreev reflection on the p-wave altermagnet-superconductor junctions

Document Type : Original Article

Author

Morteza Salehi

Physics Dept., Bu Ali Sina University, Hamadan, Iran

https://doi.org/10.47176/ijpr.25.1.12038

Abstract

We investigate the Andreev reflection properties of a two-dimensional p-wave Altermagnet-superconductor junction. The Altermagnet materials have special spin texture in the absence of spin-orbit interaction and create a new class in the category of magnetic materials alongside ferromagnet, anti-ferromagnet, etc. Here, we show that Andreev reflection is sensitive to the propagation direction of incoming fermions and breaks the mirror symmetry with respect to perpendicular direction when the strength-vector of Altermagnet has a component parallel to the junction’s interface. Due to mirror symmetry breaking a transverse spin current flows parallel to the junction. The creation of spin current in the absence of long-range magnetization of ferromagnets and spin-orbit interaction is crucial in spintronics.

Keywords

Andreev reflection

p-wave altermagnet

breaking mirror symmetry

angle-dependent quantum transport

Subjects

Superconductivity

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