Pressure-enhanced <i>f</i>-electron orbital weighting in UTe₂ mapped by quantum interferometry.

ABSTRACT: The phase landscape of UTe₂ features a remarkable diversity of superconducting phases under applied pressure and magnetic field. Recent quantum oscillation studies at ambient pressure have revealed the quasi-2D Fermi surface of this material. However, the pressure-dependence of the Fermi surface remains an open question. Here we track the evolution of the UTe₂ Fermi surface as a function of pressure up to 19.5 kbar by measuring quantum interference oscillations. We find that in sufficient magnetic field to suppress both superconductivity at low pressures and incommensurate antiferromagnetism at higher pressures, the quasi-2D Fermi surface found at ambient pressure smoothly connects to that at 19.5 kbar, with no signs of a reconstruction over this pressure interval. We

SUBMITTER: Weinberger TI 

PROVIDER: S-EPMC12629984 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature