Solid argon as a possible substrate for quasi-freestanding silicene

被引：12

作者：

Sattar, S. ^{[1
]}

Hoffmann, R. ^{[2
]}

Schwingenschloegl, U. ^{[1
]}

机构：

[1] KAUST, PSE Div, Thuwal 239556900, Saudi Arabia

[2] Cornell Univ, Dept Chem & Chem Biol, Baker Lab, Ithaca, NY 14853 USA

来源：

NEW JOURNAL OF PHYSICS | 2014年 / 16卷

基金：

美国国家科学基金会;

关键词：

silicene; DFT calculation; substrate;

D O I：

10.1088/1367-2630/16/6/065001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the structural and electronic properties of silicene on solid Ar(1 1 1) substrate using ab initio calculations. We demonstrate that due to weak interaction, quasi-freestanding silicene is realized in this system. The small binding energy of only -32 meV per Si atom also indicates the possibility to separate silicene from the solid Ar(1 1 1) substrate. In addition, a band gap of 11 meV and a significant splitting of the energy levels due to spin-orbit coupling are observed.

引用

收藏

页数：7

相关论文

共 37 条

[1] Nanostructure diffusion and aggregation on desorbing rare-gas solids: Slip on an incommensurate lattice [J].

Antonov, VN ;

Palmer, JS ;

Bhatti, AS ;

Weaver, JH .

PHYSICAL REVIEW B, 2003, 68 (20)

[2] Graphene-like silicon nanoribbons on Ag(110): A possible formation of silicene [J].

Aufray, Bernard ;

Kara, Abdelkader ;

Vizzini, Sebastien ;

Oughaddou, Hamid ;

Leandri, Christel ;

Ealet, Benedicte ;

Le Lay, Guy .

APPLIED PHYSICS LETTERS, 2010, 96 (18)

[3] Role and Effective Treatment of Dispersive Forces in Materials: Polyethylene and Graphite Crystals as Test Cases [J].

Barone, Vincenzo ;

Casarin, Maurizio ;

Forrer, Daniel ;

Pavone, Michele ;

Sambi, Mauro ;

Vittadini, Andrea .

JOURNAL OF COMPUTATIONAL CHEMISTRY, 2009, 30 (06) :934-939

[4] Exploring semiconductor substrates for silicene epitaxy [J].

Bhattacharya, Amrita ;

Bhattacharya, Saswata ;

Das, Gour P. .

APPLIED PHYSICS LETTERS, 2013, 103 (12)

[5] Two- and One-Dimensional Honeycomb Structures of Silicon and Germanium [J].

Cahangirov, S. ;

Topsakal, M. ;

Akturk, E. ;

Sahin, H. ;

Ciraci, S. .

PHYSICAL REVIEW LETTERS, 2009, 102 (23)

[6] Stability and electronic properties of two-dimensional silicene and germanene on graphene [J].

Cai, Yongmao ;

Chuu, Chih-Piao ;

Wei, C. M. ;

Chou, M. Y. .

PHYSICAL REVIEW B, 2013, 88 (24)

[7] Evidence for Dirac Fermions in a Honeycomb Lattice Based on Silicon [J].

Chen, Lan ;

Liu, Cheng-Cheng ;

Feng, Baojie ;

He, Xiaoyue ;

Cheng, Peng ;

Ding, Zijing ;

Meng, Sheng ;

Yao, Yugui ;

Wu, Kehui .

PHYSICAL REVIEW LETTERS, 2012, 109 (05)

[8] Evidence of graphene-like electronic signature in silicene nanoribbons [J].

De Padova, Paola ;

Quaresima, Claudio ;

Ottaviani, Carlo ;

Sheverdyaeva, Polina M. ;

Moras, Paolo ;

Carbone, Carlo ;

Topwal, Dinesh ;

Olivieri, Bruno ;

Kara, Abdelkader ;

Oughaddou, Hamid ;

Aufray, Bernard ;

Le Lay, Guy .

APPLIED PHYSICS LETTERS, 2010, 96 (26)

[9]

Din Y, 2009, APPL PHYS LETT, V95

[10] Silicene structures on silver surfaces [J].

Enriquez, Hanna ;

Vizzini, Sebastien ;

Kara, Abdelkader ;

Lalmi, Boubekeur ;

Oughaddou, Hamid .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2012, 24 (31)

← 1 2 3 4 →