Controlling topological electronic structure of multifunctional MXene layer

被引：27

作者：

Balci, Erdem ^{[1
]}

Akkus, Unal Ozden ^{[1
]}

Berber, Savas ^{[1
]}

机构：

[1] Gebze Tech Univ, Dept Phys, TR-41400 Gebze, Kocaeli, Turkey

来源：

APPLIED PHYSICS LETTERS | 2018年 / 113卷 / 08期

关键词：

TRANSITION-METAL CARBIDES; 2-DIMENSIONAL MATERIALS; TUNABLE BANDGAP; PSEUDOPOTENTIALS; INSULATOR; ORDER; FIELD; MOS2;

D O I：

10.1063/1.5042828

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electric field-and charge transfer-induced topological properties of Sc2C(OH)(2) MXene layers are reported. The system transforms from a trivial insulator to a topological insulator and to a metal. The s-pd orbitals are exchanged during the topological phase transition. The modification of the bandgap along with the transition to the topological phase reveals that Sc2C(OH)(2) MXene is a multifunctional material. The nearly free states, which form ideal conduction channels, are responsible for the topological electronic band structures. Published by AIP Publishing.

引用

页数：5

共 53 条

[1] Doped Sc2C(OH)2 MXene: new type s-pd band inversion topological insulator [J].

Balci, Erdem ;

Akkus, Unal Ozden ;

Berber, Savas .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2018, 30 (15)

[2]

Barsoum MW, 2013, MAX PHASES: PROPERTIES OF MACHINABLE TERNARY CARBIDES AND NITRIDES, P1, DOI 10.1002/9783527654581

[3] Tailoring band gap in GaN sheet by chemical modification and electric field: Ab initio calculations [J].

Chen, Qian ;

Hu, Hong ;

Chen, Xiaojie ;

Wang, Jinlan .

APPLIED PHYSICS LETTERS, 2011, 98 (05)

[4] Electrically Tunable Bandgaps in Bilayer MoS2 [J].

Chu, Tao ;

Ilatikhameneh, Hesameddin ;

Klimeck, Gerhard ;

Rahman, Rajib ;

Chen, Zhihong .

NANO LETTERS, 2015, 15 (12) :8000-8007

[5] Electrically tunable band gap in silicene [J].

Drummond, N. D. ;

Zolyomi, V. ;

Fal'ko, V. I. .

PHYSICAL REVIEW B, 2012, 85 (07)

[6] A topological insulator and helical zero mode in silicene under an inhomogeneous electric field [J].

Ezawa, Motohiko .

NEW JOURNAL OF PHYSICS, 2012, 14

[7] Dirac points with giant spin-orbit splitting in the electronic structure of two-dimensional transition-metal carbides0 [J].

Fashandi, H. ;

Ivady, V. ;

Eklund, P. ;

Spetz, A. Lloyd ;

Katsnelson, M. I. ;

Abrikosov, I. A. .

PHYSICAL REVIEW B, 2015, 92 (15)

[8] Topological insulators with inversion symmetry [J].

Fu, Liang ;

Kane, C. L. .

PHYSICAL REVIEW B, 2007, 76 (04)

[9] Superconducting proximity effect and Majorana fermions at the surface of a topological insulator [J].

Fu, Liang ;

Kane, C. L. .

PHYSICAL REVIEW LETTERS, 2008, 100 (09)

[10] QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials [J].

Giannozzi, Paolo ;

Baroni, Stefano ;

Bonini, Nicola ;

Calandra, Matteo ;

Car, Roberto ;

Cavazzoni, Carlo ;

Ceresoli, Davide ;

Chiarotti, Guido L. ;

Cococcioni, Matteo ;

Dabo, Ismaila ;

Dal Corso, Andrea ;

de Gironcoli, Stefano ;

Fabris, Stefano ;

Fratesi, Guido ;

Gebauer, Ralph ;

Gerstmann, Uwe ;

Gougoussis, Christos ;

Kokalj, Anton ;

Lazzeri, Michele ;

Martin-Samos, Layla ;

Marzari, Nicola ;

Mauri, Francesco ;

Mazzarello, Riccardo ;

Paolini, Stefano ;

Pasquarello, Alfredo ;

Paulatto, Lorenzo ;

Sbraccia, Carlo ;

Scandolo, Sandro ;

Sclauzero, Gabriele ;

Seitsonen, Ari P. ;

Smogunov, Alexander ;

Umari, Paolo ;

Wentzcovitch, Renata M. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (39)

← 1 2 3 4 5 6 →