Microscopic Imaging Homogeneous and Single Phase Superfluid Density in UTe_{2}.


Journal

Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141

Informations de publication

Date de publication:
12 May 2023
Historique:
received: 17 10 2022
revised: 21 12 2022
accepted: 04 04 2023
medline: 27 5 2023
pubmed: 27 5 2023
entrez: 27 5 2023
Statut: ppublish

Résumé

Odd-parity superconductor UTe_{2} shows spontaneous time-reversal symmetry breaking and multiple superconducting phases, which imply chiral superconductivity, but only in a subset of samples. Here we microscopically observe a homogeneous superfluid density n_{s} on the surface of UTe_{2} and an enhanced superconducting transition temperature near the edges. We also detect vortex-antivortex pairs even at zero magnetic field, indicating the existence of a hidden internal field. The temperature dependence of n_{s}, determined independent of sample geometry, does not support point nodes along the b axis for a quasi-2D Fermi surface and provides no evidence for multiple phase transitions in UTe_{2}.

Identifiants

pubmed: 37243629
doi: 10.1103/PhysRevLett.130.196003
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

196003

Auteurs

Yusuke Iguchi (Y)

Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA.
Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.

Huiyuan Man (H)

Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA.
Stanford Nano Shared Facilities, Stanford University, Stanford, California 94305, USA.

S M Thomas (SM)

Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.

Filip Ronning (F)

Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.

Priscila F S Rosa (PFS)

Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.

Kathryn A Moler (KA)

Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA.
Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
Department of Applied Physics, Stanford University, Stanford, California 94305, USA.

Classifications MeSH