ARPES and transport studies of the elemental topological insulator $\alpha$-Sn

Quentin Barbedienne, Julien Varignon, Nicolas Reyren +11

Gray tin, also known as $\alpha$-Sn, can be turned into a three-dimensional topological insulator (3D-TI) by strain and finite size effects. Such room temperature 3D-TI is peculiarly in…