Silicene on substrates: A theoretical perspective

Zhong Hong-Xia^a),^c)†, Quhe Ru-Ge^a),^d),^e),^f)†, Wang Yang-Yang^a),^g)†, Shi Jun-Jie^a), Lü Jing†‡^a),^b)

Band structures of silicene on (a) Ca (111) 1×1, (b) Ca(0.5 ML)/Si (111) 2×1, (c) Ca(1.0 ML)/Si(111) 1×1, and (d) Ca(1.5 ML)/Si (111) 2×1 surfaces. The silicene p_z (silicene p_xy) characteristic of the bands is indicated by red dots (blue squares) of varying size. All bands without silicene characteristics are given by grey lines (Reproduced with permission from Ref. [ 22 ]. Copyright 2014 Institute of Physics).