Engineering topological phases in the Luttinger semimetal $\alpha$-Sn

Dongqin Zhang, Huaiqiang Wang, Jiawei Ruan +2

$\alpha$-Sn is well known as a typical Luttinger semimetal with a quadratic band touching at the $\Gamma$ point. Based on the effective $k\cdot p$ analysis as well as first-principles calcul…