Field-Induced Superconductivity near the Superconducting Critical Pressure in UTe₂

We report the magnetoresistance in novel spin-triplet superconductor UTe2 under pressure close to critical Pc, where superconducting phase terminates, for field along three a, b and c-axes orthorhombic structure. The H // a-axis just below Pc shows a field-reentrant behavior due competition with emergence of magnetic order at low fields. upper Hc2 c-axis quasi-vertical increase H-T diagram indicating that superconductivity is reinforced by strong fluctuations which persist even high fields above 20T. Increasing leads disappearance zero order. Surprisingly, field-induced observed fields, spin-polarized state realized suppression ordered phases; favorable superconductivity, whereas seems be unfavorable. huge imply state. Contrary a- c-axes, no field-reinforcement occurs b-axis. compare results metamagnetic field, Hm direction tilted about 30 deg. from ambient as well (-reinforced) ferromagnetic superconductors, URhGe UCoGe.