Metal-to-insulator transition in two-dimensional ferromagnetic monolayer induced by substrate Project supported by the National Natural Science Foundation of China (Grant No. 11574223), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20150303), and the Jiangsu Specially-Appointed Professor Program of Jiangsu Province, China. |
(color online) Band structures of freestanding (a) TaS, (b) TaSe, and (c) TaTe monolayers. The black and red curves stand for bands in majority and minority spin channels, respectively. The horizontal dashed lines indicate the Fermi energy. |