Year: 2021
Type: article
Abstract: Magnetic field-induced superconductivity is a fascinating quantum phenomenon, whose origin is yet to be fully understood. The recently discovered spin-triplet superconductor, UTe2, exhibits two such superconducting phases, with the second one reentering in the magnetic field of 45 T and persisting up to 65 T. More surprisingly, in order to induce this superconducting phase, the magnetic field has to be applied in a special angle range, not along any high symmetry crystalline direction. Here we investigated the evolution of this high-field-induced superconducting phase under pressure. Two superconducting phases merge together under pressure, and the zero resistance persists up to 45 T, the field limit of the current study. We also reveal that the high-field-induced superconducting phase is completely decoupled from the first-order field-polarized phase transition, different from the previously known example of field-induced superconductivity in URhGe, indicating superconductivity boosted by a different paring mechanism.
Source: npj Quantum Materials
Authors: Sheng Ran, Shanta R. Saha, I-Lin Liu, David Graf, Johnpierre Paglione, Nicholas P. Butch
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,240
Awards: G1138554163, National High Magnetic Field Laboratory Renewal 2018-2022, G2539723106, Spin Fluctuations at Exposed Quantum Critical Points, TOPOLOGICAL SUPERCONDUCTIVITY IN STRONG SPIN-ORBIT MATERIALS, G354028113, G3560959519, G410635398, G5597825783, Johnpierre Paglione Materials Synthesis Investigator Award, G6010147111, G7214215584
OpenAlex ID: W3181446553