Fully gapped pairing state in spin-triplet superconductor UTe

スピン三重項超伝導体UTeにおけるフルギャップペアリング状態

末次 祥大*; 酒井 宏典   ; Opletal, P.  ; 常盤 欣文  ; 芳賀 芳範   ; 他12名*

Suetsugu, Shota*; Sakai, Hironori; Opletal, P.; Tokiwa, Yoshifumi; Haga, Yoshinori; 12 of others*

The superconducting gap structure of UTe was determined by the thermal conductivity measurement on ultra-clean UTe single crystals. The result demonstrates the absence of nodes around the -axis, contrary to the previous study. The finding reveals that UTe is likely to be a long-sought three-dimensional strong topological superconductor.