Uranium ditelluride (UTe₂) is recognized as a host material to unconventional spin-triplet superconductivity, but it also exhibits a wealth of additional unusual behavior at high magnetic fields. One of the most prominent signatures of the unconventional superconductivity is a large and anisotropic upper critical field that exceeds the paramagnetic limit. This superconductivity survives to 35 T and is bounded by a discontinuous magnetic transition, which itself is also field-direction-dependent. A different, reentrant superconducting phase emerges only on the high-field side of the magnetic transition, in a range of angles between the crystallographic b and c axes. This review discusses the current state of knowledge of these high-field phases, the high-field behavior of the heavy fermion normal state, and other phases that are stabilized by applied pressure.

中文翻译：

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高磁场下 UTe2 的综述


二碲化铀（UTe ₂ ）被认为是非常规自旋三重态超导的主体材料，但它在高磁场下也表现出许多额外的异常行为。非常规超导最突出的特征之一是超过顺磁极限的大且各向异性的上临界场。这种超导性可以持续到 35 T，并受到不连续磁转变的限制，而磁转变本身也与场方向相关。不同的重入超导相仅出现在磁转变的高场侧，在晶体 b 轴和 c 轴之间的角度范围内。本综述讨论了这些高场相、重费米子正常态的高场行为以及通过施加压力稳定的其他相的当前知识状态。