High magnetic field measurements of uranium ditelluride

Few known materials exhibit unconventional superconductivity - far fewer possess phase diagrams containing multiple separate phases of unconventional superconductivity. This talk will review our recent high magnetic field measurements of the actinoid dichalcogenide UTe2, which exhibits numerous distinct superconductive states that persist to remarkably high field strengths. Recent optimization of the growth procedure of UTe2 single crystals has enabled us to map out the exotic phase landscape of this material in the clean limit, with notable similarities and differences between experiments conducted on samples of highly varying levels of crystalline disorder. Notably, in our pulsed field measurements to 80 T we have uncovered signatures of a quantum phase transition anchoring the high field phase landscape, which may shed light on the manifestation of extremely field-resilient superconductivity in this material.