论文标题
非常规超导体UTE2中的固有异常热厅效应
Intrinsic Anomalous Thermal Hall Effect in the Unconventional Superconductor UTe2
论文作者
论文摘要
我们研究了固有的异常热厅效应，作为对假定的自旋三键超导体UTE $ _2 $的非自动配对状态的顺序参数的有效探测。我们全面考虑了所有对称对称性的非单身状态，并计算出空隙功能的时间反转对称性的Weyl点节点引起的异常霍尔电导率，假设三种类型的费米表面；椭圆形，圆柱形和环形的圆柱形，这是由先前的频段计算预测的。我们发现在两个不可约表示的一定比例中，非零的异常热厅电导率。结果可能用于将来探索UTE $ _2 $的配对状态。
We investigate the intrinsic anomalous thermal Hall effect as an effective probe of the order parameters of non-unitary pairing states of the putative spin-triplet superconductor UTe$_2$. We consider all symmetry-allowed non-unitary states under magnetic fields comprehensively, and calculate the anomalous Hall conductivity arising from time-reversal symmetry-breaking Weyl point nodes of the gap functions, assuming three types of Fermi surfaces; ellipsoid-shaped, cylinder-shaped, and ring-shaped ones, which are predicted by previous band calculations. We find the nonzero anomalous thermal Hall conductivity in the certain ratio of the two irreducible representations. The results may be utilized for future exploration of pairing states of UTe$_2$.
