中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Anisotropic elastic behaviour and one-dimensional metal in phosphorene

文献类型:期刊论文

作者Shi, L (石林)
刊名PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
出版日期2014
卷号8期号:11页码:939-942
关键词P nanosheet Dirac electronic structure strain engineering anisotropic elasticity
通讯作者Ding, Y (Ding, Yi)
英文摘要
Using first-principles calculations, we investigate the mechanical and 
 
electronic properties of phosphorene nanosheets under tensile strains. It is found 
 
that phosphorene possesses a prominent anisotropic elasticity with the large 
 
anisotropic factor of 15.5. Along the armchair direction, the phosphorene sheet 
 
exhibits a high tensile ductility, characterized by a large elastic strain limit of 
 
0.31. While in the zigzag direction, the critical strain of phosphorene is dictated 
 
by the phonon instability and the in-plane soft mode occurs beyond the 0.22 strain. 
 
Under uniaxial strains, the band gaps of phosphorene can be modulated continuously, 
 
whose band features are also altered accordingly. A Dirac-like band structure 
 
appears in phosphorene under adequate strains along the zigzag direction. More 
 
interestingly, these Dirac cones of phosphorene display evident anisotropy, which 
 
have high Fermi velocities up to (6 - 7) x 10(5) m/s along the armchair direction 
 
but drop to zero along the zigzag direction. With such a characteristic, the 
 
strained phosphorene sheet acts as an intriguing one-dimensional metal, which 
 
enables the system many potential applications in power-efficient and ultrafast 
 
nanodevices. ((c) 2014 WILEY-VCH Verlag GmbH &Co. KGaA, Weinheim) 
收录类别SCI
语种英语
WOS记录号WOS:000345274300011
公开日期2015-02-02
源URL[http://ir.sinano.ac.cn/handle/332007/1730]  
专题苏州纳米技术与纳米仿生研究所_测试分析平台
推荐引用方式
GB/T 7714
Shi, L . Anisotropic elastic behaviour and one-dimensional metal in phosphorene[J]. PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS,2014,8(11):939-942.
APA Shi, L .(2014).Anisotropic elastic behaviour and one-dimensional metal in phosphorene.PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS,8(11),939-942.
MLA Shi, L ."Anisotropic elastic behaviour and one-dimensional metal in phosphorene".PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS 8.11(2014):939-942.

入库方式: OAI收割

来源:苏州纳米技术与纳米仿生研究所

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