Coexistence of Spin Density Wave and Triplet Superconductivity

TL;DR

This paper explores the coexistence of spin density wave and triplet superconductivity in quasi-one-dimensional metals, proposing a non-uniform phase with alternating magnetic and superconducting stripes influenced by pressure.

Contribution

It introduces a theoretical model for a non-uniform phase where antiferromagnetism and triplet superconductivity coexist in a stripe pattern.

Findings

Proposes an intermediate non-uniform phase with alternating stripes.

Describes a transition between 2D and 3D behavior within the phase.

Suggests experimental relevance to pressure-induced phase changes.

Abstract

We discuss the possibility of coexistence of spin density wave (antiferromagnetism) and triplet superconductivity as a particular example of a broad class of systems where the interplay of magnetism and superconductivity is important. We focus on the case of quasi-one-dimensional metals, where it is known experimentally that antiferromagnetism is in close proximity to triplet superconductivity in the temperature versus pressure phase diagram. Over a narrow range of pressures, we propose an intermediate non-uniform phase consisting of alternating antiferromagnetic and triplet superconducting stripes. Within the non-uniform phase there are also changes between two and three dimensional behavior.