Magnetic fields typically suppress superconductivity through Pauli and orbital limiting effects. However, there are rare instances of magnetic-field-induced superconductivity, as seen in Chevrel phase compounds [1], organic conductors [2], uranium-based heavy-fermion systems [3, 4], and moire graphene [5], though these materials possess inherently low superconducting transition temperatures (Tc). Here, we demonstrate high field-stabilized superconductivity in a class of materials with a significantly higher Tc (up to 40 K): the infinite-layer nickelates [6]. Both low-field and high-field superconducting states can be plausibly explained by a compensation mechanism akin to the Jaccarino-Peter effect. These findings demonstrate the possibility of achieving substantially enhanced upper critical fields in high-temperature superconductors.
@article{arxiv.2508.16290,
title = {High-field-stabilized reentrant superconductivity in infinite-layer nickelate thin films},
author = {Km Rubi and King Yau Yip and Elizabeth Krenkel and Nurul Fitriyah and Xing Gao and Saurav Prakash and S. Lin Er Chow and Tsz Fung Poon and Mun K. Chan and David Graf and A. Ariando and Neil Harrison},
journal= {arXiv preprint arXiv:2508.16290},
year = {2026}
}