Notes on multiple superconducting phases in UTe$_2$ ---Third transition---

Kazushige Machida

doi:10.7566/jpsj.89.065001

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arXiv · 2004.09080

Notes on multiple superconducting phases in UTe$_2$ ---Third transition---

Kazushige Machida

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Abstract

A three-component Ginzburg-Landau theory for a triplet pairing is developed to understand the observed multiple phases in a new superconductor UTe$_2$ under pressure. Near the critical pressure $P_{\rm cr}$=0.2GPa where all components are perfectly degenerate the three successive superconducting transitions are predicted to occur. The $p$-wave pairing symmetry realized in UTe$_2$ is characterized by non-unitarity and chirality with point nodes, thus time reversal symmetry spontaneously broken.

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Kazushige Machida. 2020-04-20. Notes on multiple superconducting phases in UTe$_2$ ---Third transition---. https://doi.org/10.7566/jpsj.89.065001

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