Silicene spintronics — A concise review*
Wang Yang-Yanga),c), Quhe Ru-Gea),d),e),f), Yu Da-Penga),b), Lü Jing‡a),b)
       
Phase diagram in the E z – M plane. Heavy lines represent phase boundaries where the system becomes metallic. Chern and spin-Chern numbers ( C , C s) are well defined and given in insulator phases. Dotted lines represent the points where the band gap closes within the VPM phase. A circle shows a point where the energy spectrum is calculated and is shown in Fig. 12 . Reproduced with permission from Ref. [ 38 ]. Copyright 2012 American Physical Society.