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
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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. |
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