Novel anisotropic spin singlet pairings in Cu${}_x$Bi${}_2$Se${}_3$ and Bi${}_2$Te${}_3$

Lei Hao, Guiling Wang, Ting-Kuo Lee +3

Possible anisotropic spin singlet pairings in Bi${}_2$X${}_3$ (X is Se or Te) are studied. Among six pairings compatible with the crystal symmetry, two novel pairings show nontrivial s…