Quantum spin Hall insulators in chemically functionalized As (110) and Sb (110) films<xref rid="cpb_27_8_087305fn1" ref-type="fn">*</xref><fn id="cpb_27_8_087305fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 11474197, U1632272, and 11521404).</p></fn>

Quantum spin Hall insulators in chemically functionalized As (110) and Sb (110) films**

Project supported by the National Natural Science Foundation of China (Grant Nos. 11474197, U1632272, and 11521404).

Wang Xiahong¹, Li Ping¹, Ran Zhao¹, Luo Weidong^{1, 2, 3, †}

(color online) (a) Hexagonal unit cell of bulk X (X = As, Sb) and the X atoms in the (110) plane marked within the blue cuboid. (b) Diagram of the decorated X–D (D = H, Cl, Br) structure from top view and side view respectively. The inversion center is marked in the red point in the unit cell of X–D. Blue represents X atoms and green refers to D atoms. (c) Phonon bands of As–Cl film.