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arXiv · 2504.07088

Pauli 'unlimited': magnetic field induced-superconductivity in UTe$_2$

Josephine J. Yu·Yue Yu·Chaitanya Murthy·Srinivas Raghu
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Abstract

Inspired by the observation of extreme field-boosted superconductivity in uranium ditelluride, we present a scenario in which superconductivity can be induced by a strong Zeeman field, rather than destroyed by it, as is the case in Pauli-limited superconductivity. The resulting superconducting state has an upper critical field far greater than the superconducting transition temperature, and with spin-orbit coupling, it is sensitive to the field orientation. We demonstrate the interplay between superconductivity and metamagnetism in a simple effective theory.

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Josephine J. Yu, Yue Yu, Chaitanya Murthy, Srinivas Raghu. 2025-04-09. Pauli 'unlimited': magnetic field induced-superconductivity in UTe$_2$. https://doi.org/10.1103/3ldv-ndqj

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