The heavy fermion material UTe2 hosts a suite of exotic superconducting phases, the most extreme of which resides in a narrow angular window of intense magnetic fields > 40 T. Here we report that in the angular and field regime in which field-induced superconductivity is most robust, the normal-state resistivity exhibits a linear temperature dependence characteristic of strange metallicity, sharply contrasting with the Fermi-liquid behavior observed at low fields and away from this angular window. Through angle-dependent magnetotransport measurements in high magnetic fields, we find that the strange metal state is confined to a narrow angular range where field-induced superconductivity is also maximized, suggesting a shared underlying mechanism. These findings reveal a novel setting for strange metallicity - proximate to spin-triplet, field-induced superconductivity - and point to the presence of quantum critical fluctuations, likely of a magnetic origin. The coexistence of strange metallicity and putatively spin-triplet pairing challenges prevailing paradigms of non-Fermi-liquid phenomenology, and highlights UTe2 as a unique platform for exploring the interplay between unconventional superconductivity and quantum criticality.
@article{arxiv.2505.12131,
title = {Strange metallicity encompasses high magnetic field-induced superconductivity in UTe2},
author = {T. I. Weinberger and H. Chen and Z. Wu and M. Long and A. Cabala and Y. Skourski and J. Sourd and T. Haidamak and V. Sechovsky and M. Valiska and F. M. Grosche and A. G. Eaton},
journal= {arXiv preprint arXiv:2505.12131},
year = {2025}
}