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

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 $P_{\mathrm{cr}}$=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.

3 pages, 3 figures

References in corpus (4)

• Unconventional Superconductivity in Heavy Fermion UTe2
• Review of U-based Ferromagnetic Superconductors: Comparison between UGe2, URhGe, and UCoGe
• Multiple Superconducting Phases and Unusual Enhancement of the Upper Critical Field in UTe2
• 125Te-NMR Study on a Single Crystal of Heavy Fermion Superconductor UTe2