Hydrostatic pressure studies on non-superconducting UTe2

M. O. Ajeesh; Joe D. Thompson; Eric D. Bauer; Filip Ronning; Sean M. Thomas; Priscila F. S. Rosa

doi:10.7566/JPSJ.93.055001

Hydrostatic pressure studies on non-superconducting UTe2

Strongly Correlated Electrons 2025-05-28 v1 Superconductivity

Authors: M. O. Ajeesh , Joe D. Thompson , Eric D. Bauer , Filip Ronning , Sean M. Thomas , Priscila F. S. Rosa

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Abstract

We report the temperature-pressure phase diagram of a UTe $_2$ single crystal that does not undergo a bulk superconducting transition but shows filamentary superconductivity with a critical transition temperature of 1 K at ambient pressure. Electrical-resistivity measurements reveal that the evolution of the filamentary superconducting state under pressure resembles the behavior observed in previous reports on bulk superconducting samples. AC calorimetry, however, does not show evidence for either bulk superconductivity or magnetism for pressures up to 1.6 GPa. Our results highlight the role of inhomogeneity in chemical-vapor-transport-grown UTe $_2$ samples and serve as a cautionary tale when probing electrical resistivity alone.

Keywords

single crystal superconductivity high-pressure phase transitions superconductivity

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@article{arxiv.2505.21064,
  title  = {Hydrostatic pressure studies on non-superconducting UTe2},
  author = {M. O. Ajeesh and Joe D. Thompson and Eric D. Bauer and Filip Ronning and Sean M. Thomas and Priscila F. S. Rosa},
  journal= {arXiv preprint arXiv:2505.21064},
  year   = {2025}
}

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7 pages, 2 figures

Hydrostatic pressure studies on non-superconducting UTe2

Abstract

Keywords

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