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

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Cited by in corpus (9)

• Field-induced transition from even to odd parity superconductivity in CeRh${}_2$As${}_2$
• Orientation of point nodes and nonunitary triplet pairing tuned by the easy-axis magnetization in UTe2
• Triplet pairing mechanisms from Hund's-Kondo models: applications to UTe${}_2$ and CeRh${}_2$As${}_2$
• Violation of the Pauli-Clogston limit in a heavy Fermion superconductor CeRh${}_2$As${}_2$ --Duality of itinerant and localized 4f electrons--
• Slow Electronic Dynamics in the Paramagnetic State of UTe${}_2$
• Non-unitary triplet superconductivity tuned by field-controlled magnetization --URhGe, UCoGe and UTe${}_2$--
• Longitudinal spin fluctuations driving field-reinforced superconductivity in UTe${}_2$
• Violation of the orbital depairing limit in a non-unitary state --on the high field phase in the heavy Fermion superconductor UTe${}_2$--
• Theoretical studies on off-axis phase diagrams and Knight shifts in UTe${}_2$ -- Tetra-critical point, d-vector rotation, and multiple phases