Magnetic field enhanced superconductivity in Eu-doped infinite-layer nickelates

ORAL

Abstract

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). In this talk, I will present a high field-reentrant superconductivity in a class of materials with a significantly higher Tc: the infinite-layer nickelates [6, 7]. Both low-field and high-field superconducting states can be plausibly explained by a compensation mechanism akin to the Jaccarino-Peter effect. These findings highlight the technological potential of nickelates for ultra-high magnetic field applications such as superconducting magnets and quantum magnetometers.

References

[1] H. W. Meul et al, Physical Review Letters 53, 497 (1984).

[2] S. Uji et al, Nature 410, 908 (2001).

[3] F. L_evy, I. Sheikin, B. Grenier, and A. D. Huxley, Science 309, 1343 (2005).

[4] S. Ran et al., Science 365, 684 (2019).

[5] Y. Cao et al. , Nature 595, 526 (2021).

[6] S. L. E. Chow, Z. Luo, and A. Ariando, Nature 642, 58 (2025).

[7] K. Rubi et al., arXiv:2508.16290 (2025).

*This work was performed as part of the Department of Energy (DoE) BES project `Science of 100 tesla.' The National High Magnetic Field Laboratory is funded by the National Science Foundation through NSF/DMR-2128556, the State of Florida and DoE. We acknowledge the support from the Ministry of Education (MOE), Singapore, under its Tier-2 Academic Research Fund (AcRF), Grant No. MOE-T2EP50123-0013, the SUSTech-NUS Joint Research Program, and by the MOE Tier-3 Grant (MOE-MOET32023-0003) `Quantum Geometric Advantage'.

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Publication: Km Rubi et al., Extreme magnetic field-boosted superconductivity in a high-temperature superconductor, arXiv:2508.16290 (2025)

Presenters

  • KM Rubi

    • Los Alamos National Laboratory (LANL)

Authors

  • KM Rubi

    • Los Alamos National Laboratory (LANL)

  • Mun K Chan

    • Los Alamos National Laboratory (LANL)

  • Neil Harrison

    • Los Alamos National Laboratory (LANL)

  • King Yau Yip

    • National University of Singapore

  • Ariando Ariando

    • Natl Univ of Singapore

  • Elizabeth Helen Krenkel

    • Los Alamos National University

  • Nurul Fitriyah

    • National University of Singapore

  • Xing Gao

    • National University of Singapore

  • S. Lin Er Chow

    • National University of Singapore

  • Saurav Prakash

    • Natl Univ of Singapore