UTe2 from a crystallographicc lens

The spin-triplet candidate superconductor UTe$_{2}$ [1] crystallizes in the $Immm$ space group (no. 71), $a$ = ~4.16 Å, $b$ = ~6.14 Å, and $c$ = ~13.98 Å, and contains three crystallographic sites, one U site which occupies the 4$i$ position and two Te sites, where Te1 occupies the 4$j$ position and Te2 occupies the 4$h$ position [2]. An intrinsic multicomponent superconducting order parameter has been suggested to exist in UTe$_{2}$ [3] although contrasting reports indicate that the dual transitions arise due to inhomogeneity within the crystal [4]. This talk will focus on detailed single crystal X-ray diffraction studies to probe crystallographic differences in samples to elucidate the origin of the varying superconducting transitions.