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Optical manipulation of electronic dimensionality in a quantum material | |
Duan, Shaofeng1; Cheng, Yun2; Xia, Wei3; Yang, Yuanyuan1; Xu, Chengyang4; Qi, Fengfeng2; Huang, Chaozhi1; Tang, Tianwei1; Guo, Yanfeng3; Luo, Weidong4,5 | |
2021-07-08 | |
发表期刊 | NATURE |
ISSN | 0028-0836 |
EISSN | 1476-4687 |
卷号 | 595期号:7866页码:239 |
DOI | 10.1038/s41586-021-03643-8 |
摘要 | Exotic phenomena can be achieved in quantum materials by confining electronic states into two dimensions. For example, relativistic fermions are realized in a single layer of carbon atoms(1), the quantized Hall effect can result from two-dimensional (2D) systems(2,3), and the superconducting transition temperature can be considerably increased in a one-atomic-layer material(4,5). Ordinarily, a 2D electronic system can be obtained by exfoliating the layered materials, growing monolayer materials on substrates, or establishing interfaces between different materials. Here we use femtosecond infrared laser pulsesto invert the periodic lattice distortion sectionally in a three-dimensional (3D) charge density wave material (1T-TiSe2), creating macroscopic domain walls of transient 2D ordered electronic states with unusual properties. The corresponding ultrafast electronic and lattice dynamics are captured by time-resolved and angle-resolved photoemission spectroscopy(6) and ultrafast electron diffraction at energies of the order of megaelectronvolts(7). Moreover, in the photoinduced 2D domain wall near the surface we identify a phase with enhanced density of states and signatures of potential opening of an energy gap near the Fermi energy. Such optical modulation of atomic motion is an alternative path towards realizing 2D electronic states and will be a useful platform upon which novel phases in quantum materials may be discovered. |
URL | 查看原文 |
收录类别 | SCIE |
语种 | 英语 |
WOS研究方向 | Science & Technology - Other Topics |
WOS类目 | Multidisciplinary Sciences |
WOS记录号 | WOS:000671377900011 |
出版者 | NATURE RESEARCH |
原始文献类型 | Article |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/127721 |
专题 | 物质科学与技术学院_公共科研平台_拓扑物理实验室 物质科学与技术学院_PI研究组_郭艳峰组 |
通讯作者 | Xiang, Dao; Zhang, Wentao |
作者单位 | 1.Shanghai Jiao Tong Univ, Key Lab Artificial Structures & Quantum Control, Minist Educ, Shenyang Natl Lab Mat Sci,Sch Phys & Astron, Shanghai, Peoples R China; 2.Shanghai Jiao Tong Univ, Key Lab Laser Plasmas, Minist Educ, Sch Phys & Astron, Shanghai, Peoples R China; 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai, Peoples R China; 4.Shanghai Jiao Tong Univ, Key Lab Artificial Struct & Quantum Control, Minist Educ, Sch Phys & Astron, Shanghai, Peoples R China; 5.Shanghai Jiao Tong Univ, Inst Nat Sci, Shanghai, Peoples R China; 6.Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai, Peoples R China; 7.Shanghai Jiao Tong Univ, Zhangjiang Inst Adv Study, Shanghai, Peoples R China |
推荐引用方式 GB/T 7714 | Duan, Shaofeng,Cheng, Yun,Xia, Wei,et al. Optical manipulation of electronic dimensionality in a quantum material[J]. NATURE,2021,595(7866):239. |
APA | Duan, Shaofeng.,Cheng, Yun.,Xia, Wei.,Yang, Yuanyuan.,Xu, Chengyang.,...&Zhang, Wentao.(2021).Optical manipulation of electronic dimensionality in a quantum material.NATURE,595(7866),239. |
MLA | Duan, Shaofeng,et al."Optical manipulation of electronic dimensionality in a quantum material".NATURE 595.7866(2021):239. |
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