Cooperative Electron-Phonon Coupling and Buckled Structure in Germanene on Au(111)
文献类型：期刊论文
| 作者 | Zhuang, JC; Gao, N; Li, Z; Xu, X; Wang, JO ; Zhao, JJ; Dou, SX; Du, Y; Wang JO(王嘉鸥)
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| 刊名 | ACS NANO
 |
| 出版日期 | 2017 |
| 卷号 | 11期号:4页码:3553-3559 |
| 关键词 | germanene electron-phonon coupling Raman STM |
| ISSN号 | 1936-0851 |
| DOI | 10.1021/acsnano.7b00687 |
| 文献子类 | Article |
| 英文摘要 | Germanene, a single-atom-thick germanium nanosheet in a honeycomb lattice, was proposed to be a Dirac fermion material beyond graphene. We performed scanning tunneling microscopy and in situ Raman spectroscopy studies combined with first-principles calculations on the atomic structures and the electronic and phonon properties of germanene on Au(111). The low-buckled 1 X 1 germanene honeycomb lattice was determined to exist in an unexpected rectangular root 7 X root 7 superstructure. Through in situ Raman measurements, distinctive vibrational phonon modes were discovered in root 7 X root 7 germanene, revealing the special coupling between the Dirac fermion and lattice vibrations, namely, electron phonon coupling (EPC). The significant enhancement of EPC is correlated with the tensile strain, which is evoked by the singular buckled structure of root 7 X root 7 germanene on the Au(111) substrate. Our results present clear evidence for the existence of epitaxial germanene and elucidate the exotic properties of germanene on Au(111). |
| 电子版国际标准刊号 | 1936-086X |
| WOS关键词 | SCANNING TUNNELING MICROSCOPE ; SILICENE ; SEMICONDUCTORS ; GRAPHENE ; APPROXIMATION ; LAYER |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000400233200015 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285135]  |
| 专题 | 中国科学院高能物理研究所_中国散裂中子源 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhuang, JC,Gao, N,Li, Z,et al. Cooperative Electron-Phonon Coupling and Buckled Structure in Germanene on Au(111)[J]. ACS NANO,2017,11(4):3553-3559. |
| APA | Zhuang, JC.,Gao, N.,Li, Z.,Xu, X.,Wang, JO.,...&王嘉鸥.(2017).Cooperative Electron-Phonon Coupling and Buckled Structure in Germanene on Au(111).ACS NANO,11(4),3553-3559. |
| MLA | Zhuang, JC,et al."Cooperative Electron-Phonon Coupling and Buckled Structure in Germanene on Au(111)".ACS NANO 11.4(2017):3553-3559. |
入库方式： OAI收割
来源：高能物理研究所
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