1 Schwierz F. Graphene transistors. Nat Nanotechnol, 2010, 5: 487-496
[2]
2 Guzmán-Verri G G, Lew Yan Voon L C. Electronic structure of silicon-based nanostructures. Phys Rev B, 2007, 76: 075131
[3]
3 Takeda K, Shiraishi K. Theoretical possibility of stage corrugation in Si and Ge analogs of graphite. Phys Rev B, 1994, 50: 14916-14922
[4]
4 Cahangirov S, Topsakal M, Aktürk E, et al. Two-and one-dimensional honeycomb structures of silicon and germanium. Phys Rev Lett, 2009, 102: 236804
[5]
5 Liu C C, Feng W, Yao Y. Quantum spin hall effect in silicene and two-dimensional germanium. Phys Rev Lett, 2011, 107: 076802
[6]
6 Ni Z, Liu Q, Tang K, et al. Tunable bandgap in silicene and germanene. Nano Lett, 2012, 12: 113-118
[7]
7 Vogt P, De Padova P, Quaresima C, et al. Silicene: Compelling experimental evidence for graphenelike two-dimensional silicon. Phys Rev Lett, 2012, 108: 155501
[8]
8 Feng B, Ding Z, Meng S, et al. Evidence of silicene in honeycomb structures of silicon on Ag(111). Nano Lett, 2012, 12: 3507-3511
[9]
9 Fleurence A, Friedlein R, Ozaki T, et al. Experimental evidence for epitaxial silicene on diboride thin films. Phys Rev Lett, 2012, 108: 245501
[10]
10 Chen L, Liu C C, Feng B, et al. Evidence for Dirac fermions in a honeycomb lattice based on silicon. Phys Rev Lett, 2012, 109: 056804
[11]
11 Ezawa M. Valley-polarized metals and quantum anomalous hall effect in silicene. Phys Rev Lett, 2012, 109: 055502
[12]
12 Chen L, Li H, Feng B, et al. Spontaneous symmetry breaking and dynamic phase transition in monolayer silicene. Phys Rev Lett, 2013, 110: 085504
[13]
13 Chen L, Feng B, Wu K. Observation of a possible superconducting gap in silicene on Ag(111) surface. Appl Phys Lett, 2013, 102: 081602
[14]
14 Feng B, Li H, Liu C C, et al. Observation of Dirac cone warping and chirality effects in silicene. ACS Nano, 2013, 7: 9049-9054
[15]
15 Tsai W F, Huang C Y, Chang T R, et al. Gated silicene as a tunable source of nearly 100% spin-polarized electrons. Nat Commun, 2013, 4: 1500
[16]
16 Du Y, Zhuang J, Liu H, et al. Tuning band gap in silicene by oxidation. ACS Nano, 2014, 8: 10019
[17]
17 Pan H, Li Z, Liu C C, et al. Valley-polarized quantum anomalous hall effect in silicene. Phys Rev Lett, 2014, 112: 106802
[18]
18 Tao L, Cinquanta E, Chiappe D, et al. Silicene field-effect transistors operating at room temperature. Nat Nanotechnol, 2015, 10: 227-231
[19]
19 De Padova P, Ottaviani C, Quaresima C, et al. 24 h stability of thick multilayer silicene in air. 2D Mater, 2014, 1: 021003
[20]
20 Lin C L, Arafune R, Kawahara K, et al. Substrate-induced symmetry breaking in silicene. Phys Rev Lett, 2013, 110: 076801
[21]
21 Sofo J O, Chaudhari A S, Barber G D. Graphane: A two-dimensional hydrocarbon. Phys Rev B, 2007, 75: 153401
[22]
22 Elias D C, Nair R R, Mohiuddin T M G, et al. Control of graphene's properties by reversible hydrogenation: Evidence for graphane. Science, 2009, 323: 610-613
[23]
23 Balog R, J？rgensen B, Nilsson L, et al. Bandgap opening in graphene induced by patterned hydrogen adsorption. Nat Mater, 2010, 9: 315-319
[24]
24 Balog R, J？rgensen B, Wells J, et al. Atomic hydrogen adsorbate structures on graphene. J Am Chem Soc, 2009, 131: 8744
[25]
25 Zheng F B, Zhang C W. The electronic and magnetic properties of functionalized silicene: A first-principles study. Nano Res Lett, 2012, 7: 422
[26]
26 Huang B, Deng H X, Lee H, et al. Exceptional optoelectronic properties of hydrogenated bilayer silicene. Phys Rev X, 2014, 4: 021029
[27]
27 Lew Yan Voon L C, Sandberg E, Aga R S, et al. Hydrogen compounds of group-IV nanosheets. Appl Phys Lett, 2010, 97: 163114
[28]
28 Zhang P, Li X D, Hu C H, et al. First-principles studies of the hydrogenation effects in silicene sheets. Phys Lett A, 2012, 376: 1230-1233
[29]
29 Meng L, Wang Y, Zhang L, et al. Buckled silicene formation on Ir(111). Nano Lett, 2013, 13: 685-690
[30]
30 Prévot G, Bernard R, Cruguel H, et al. Monitoring Si growth on Ag(111) with scanning tunneling microscopy reveals that silicene structure involves silver atoms. Appl Phys Lett, 2014, 105: 213106
[31]
31 Rahman M S, Nakagawa T, Mizuno S. Growth of Si on Ag(111) and determination of large commensurate unit cell of high-temperature phase. Jpn J App Phys, 2015, 54: 015502
[32]
32 Qiu J L, Fu H X, Xu Y, et al. Ordered and reversible hydrogenation of silicene. Phys Rev Lett, 2015, 114: 126101
[33]
33 Jamgotchian H, Colignon Y, Hamzaoui N, et al. Growth of silicene layers on Ag(111): Unexpected effect of the substrate temperature. J Phys Condens Matter, 2012, 24: 172001
[34]
34 Chiappe D, Grazianetti C, Tallarida G, et al. Local electronic properties of corrugated silicene phases. Adv Mater, 2012, 24: 5088-5093
[35]
35 Lin C L, Arafune R, Kawahara K, et al. Structure of silicene grown on Ag(111). Appl Phys Express, 2012, 5: 045802
[36]
36 Enriquez H, Vizzini S, Kara A, et al. Silicene structures on silver surfaces. J Phys Condens Matter, 2012, 24: 314211
[37]
37 Liu Z L, Wang M X, Xu J P, et al. Various atomic structures of monolayer silicene fabricated on Ag(111). New J Phys, 2014, 16: 075006
[38]
38 Guo Z X, Furuya S, Iwata J I, et al. Absence and presence of Dirac electrons in silicene on substrates. Phys Rev B, 2013, 87: 235435
[39]
39 Gao N, Zheng W T, Jiang Q. Density functional theory calculations for two-dimensional silicene with halogen functionalization. Phys Chem Chem Phys, 2012, 14: 257-261
[40]
40 Chan K T, Neaton J B, Cohen M L. First-principles study of metal adatom adsorption on graphene. Phys Rev B, 2008, 77: 235430
[41]
41 Cao C, Wu M, Jiang J, et al. Transition metal adatom and dimer adsorbed on graphene: Induced magnetization and electronic structures. Phys Rev B, 2010, 81: 205424
[42]
42 Akturk O U, Tomak M. AunPtn clusters adsorbed on graphene studied by first-principles calculations. Phys Rev B, 2009, 80: 085417
[43]
43 Cabria I, Lopez M J, Alonso J A. Theoretical study of the transition from planar to three-dimensional structures of palladium clusters supported on graphene. Phys Rev B, 2010, 81: 035403
[44]
44 Lin X, Ni J. Much stronger binding of metal adatoms to silicene than to graphene: A first-principles study. Phys Rev B, 2012, 86: 075440
[45]
45 Sahin H, Peeters F M. Adsorption of alkali, alkaline-earth, and 3D transition metal atoms on silicene. Phys Rev B, 2013, 87: 085423
[46]
46 Wang J, Li J, Li S S, et al. Hydrogen storage by metalized silicene and silicane. J Appl Phys, 2013, 114: 124309
