Possible restoration of superconductivity in the quasi-one-dimensional conductor Li$_{0.9}$Mo$_6$O$_{17}$ in feasibly high pulsed magnetic fields, $H \simeq 100 \ T$

TL;DR

This paper theoretically demonstrates that superconductivity in Li$_{0.9}$Mo$_6$O$_{17}$ could be restored in high pulsed magnetic fields around 100 T, highlighting the effects of magnetic field orientation on transition temperature.

Contribution

The study provides a theoretical prediction of triplet reentrant superconductivity in a Q1D conductor under high magnetic fields, including the impact of field orientation.

Findings

Superconductivity can be restored at magnetic fields near 100 T.

Small deviations in magnetic field direction lower the transition temperature.

The results guide experimental efforts to observe reentrant superconductivity.

Abstract

We present a theoretical study of restoration of superconductivity in the form of the triplet reentrant superconducting phase in a quasi-one-dimensional (Q1D) conductor. Substitution of known band and superconducting parameters of the presumably triplet Q1D superconductor Li$_{0.9}$Mo$_6$O$_{17}$ into our theoretical equations shows that such restoration can happen in feasibly high non-destructive pulsed magnetic field of the order of $H \simeq 100 \ T$. We investigate in detail how small inclinations of a direction of a magnetic field from its best experimental geometry decrease superconducting transition temperature of the reentrant phase, which is important for its possible experimental discovery.