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A VUV sub-micron hotspot for photoemission spectroscopy

Vacuum ultraviolet (VUV) lasers have exhibited great potential as the light source for various spectroscopies, which, if they can be focused into a smaller beam spot, will not only allow investigation of mesoscopic materials but also find applications in manufacture of nano-objects with excellent precision. Towards this goal, scientists in China invented a 177 nm VUV laser system that can achieve a record-small (<1 μm) focal spot at a long focal length (~45 mm). This system can be re-equipped for usage in low-cost ARPES and might benefit quantum materials, condensed matter physics and nanophotonics.

Prof Yulin Chen

Professor of Physics

Research theme

  • Quantum materials

Sub department

  • Condensed Matter Physics

Research groups

  • Electronic structures and photoemission spectroscopy
yulin.chen@physics.ox.ac.uk
Clarendon Laboratory, room RM263, Mullard Bldg.
Recent publications
  • About
  • Publications

Electronic origin of half-metal to semiconductor transition and colossal magnetoresistance in spinel HgCr2Se4

Physical Review B American Physical Society (APS) 107:19 (2023) 195114

Authors:

Aiji Liang, Zhilin Li, Shihao Zhang, Shucui Sun, Shuai Liu, Cheng Chen, Haifeng Yang, Shengtao Cui, Sung-Kwan Mo, Shuai Yang, Yongqing Li, Meixiao Wang, Lexian Yang, Jianpeng Liu, Zhongkai Liu, Yulin Chen
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Record-high mobility and extreme magnetoresistance on kagome-lattice in compensated semimetal Ni3In2S2

Science China Materials Springer Nature 66:5 (2023) 2032-2038

Authors:

Hongwei Fang, Meng Lyu, Hao Su, Jian Yuan, Yiwei Li, Lixuan Xu, Shuai Liu, Liyang Wei, Xinqi Liu, Haifeng Yang, Qi Yao, Meixiao Wang, Yanfeng Guo, Wujun Shi, Yulin Chen, Enke Liu, Zhongkai Liu
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Topology Hierarchy of Transition Metal Dichalcogenides Built from Quantum Spin Hall Layers

Advanced Materials Wiley 35:21 (2023) e2300227

Authors:

Lixuan Xu, Yiwei Li, Yuqiang Fang, Huijun Zheng, Wujun Shi, Cheng Chen, Ding Pei, Donghui Lu, Makoto Hashimoto, Meixiao Wang, Lexian Yang, Xiao Feng, Haijun Zhang, Fuqiang Huang, Qikun Xue, Ke He, Zhongkai Liu, Yulin Chen
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Pressure-tunable magnetic topological phases in magnetic topological insulator MnSb4Te7

Applied Physics Letters AIP Publishing 122:17 (2023) 172404

Authors:

Lingling Gao, Juefei Wu, Ming Xi, Cuiying Pei, Qi Wang, Yi Zhao, Shangjie Tian, Changhua Li, Weizheng Cao, Yulin Chen, Hechang Lei, Yanpeng Qi
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Superconductivity emerging from a pressurized van der Waals kagome material Pd3P2S8

New Journal of Physics IOP Publishing 25:4 (2023) 043001

Authors:

Qi Wang, Xiao-Le Qiu, Cuiying Pei, Ben-Chao Gong, Lingling Gao, Yi Zhao, Weizheng Cao, Changhua Li, Shihao Zhu, Mingxin Zhang, Yulin Chen, Kai Liu, Yanpeng Qi
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