Intriguing Behavior of Halogenated Two-Dimensional Tin

被引：55

作者：

Ma, Yandong ^{[1
]}

Dai, Ying ^{[1
]}

Guo, Meng ^{[1
]}

Niu, Chengwang ^{[1
]}

Huang, Baibiao ^{[1
]}

机构：

[1] Shandong Univ, State Key Lab Crystal Mat, Sch Phys, Jinan 250100, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2012年 / 116卷 / 23期

基金：

美国国家科学基金会;

关键词：

GRAPHENE; 1ST-PRINCIPLES; MONOLAYER; SILICENE;

D O I：

10.1021/jp303646e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

By means of first-principles calculations, we investigate the effect of halogens on the electronic properties of two-dimensional tin. We found the following: (1) In contrast to the currently accepted view that the Dirac cone characteristic would be deformed upon chemisorption, a new Dirac conelike characteristic of halogenated two-dimensional tin forms at the Fermi level; therefore, almost every significant property of two-dimensional tin could be transferred to halogenated two-dimensional tin with the extra advantage of being easily fabricated in experiments. (2) More surprisingly, upon chemisorption of F, Cl, Br, and I, the magnitude of the spin orbit-induced gap can exceed those in all the currently predicated 2D materials by several orders of magnitude.

引用

页码：12977 / 12981

页数：5

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