Publication Date:
2019
Description:
〈p〉Spin-triplet superconductors potentially host topological excitations that are of interest for quantum information processing. We report the discovery of spin-triplet superconductivity in UTe〈sub〉2〈/sub〉, featuring a transition temperature of 1.6 kelvin and a very large and anisotropic upper critical field exceeding 40 teslas. This superconducting phase stability suggests that UTe〈sub〉2〈/sub〉 is related to ferromagnetic superconductors such as UGe〈sub〉2〈/sub〉, URhGe, and UCoGe. However, the lack of magnetic order and the observation of quantum critical scaling place UTe〈sub〉2〈/sub〉 at the paramagnetic end of this ferromagnetic superconductor series. A large intrinsic zero-temperature reservoir of ungapped fermions indicates a highly unconventional type of superconducting pairing.〈/p〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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