Direct observation of the surface superconducting gap in the topological superconductor candidate β-PdBi2

Akifumi Mine, Takeshi Suzuki, Yigui Zhong +7

β-PdBi2 is one of the candidates for topological superconductors with a superconducting (SC) transition temperature (Tc) of 5.3 K, in which parity mixing of spin singlet and spin…