Tunable two-dimensional electron gas at the surface of thermoelectric material In${}_4$Se${}_3$

K. Fukutani, T. Sato, P. V. Galiy +2

We report the discovery of two-dimensional electron gas (2DEG) at the surface of thermoelectric material In${}_4$Se${}_3$ by angle-resolved photoemission spectroscopy. The observed 2DE…