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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

Observation of the critical state to multiple-type Dirac semimetal phases in KMgBi

Journal of Applied Physics AIP Publishing 129:23 (2021) 235109

Authors:

DF Liu, LY Wei, CC Le, HY Wang, X Zhang, N Kumar, C Shekhar, NBM Schröter, YW Li, D Pei, LX Xu, P Dudin, TK Kim, C Cacho, J Fujii, I Vobornik, MX Wang, LX Yang, ZK Liu, YF Guo, JP Hu, C Felser, SSP Parkin, YL Chen
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Electronic structure of a thermoelectric material: BiCuSO

Physical Review B American Physical Society (APS) 103:24 (2021) 245121

Authors:

D Pei, Y-Y Lv, YYY Xia, YW Li, JY Liu, NBM Schröter, C Cacho, ZK Liu, LX Yang, G Li, YB Chen, YL Chen
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Observation of topological superconductivity in a stoichiometric transition metal dichalcogenide 2M-WS2

Nature Communications Springer Nature 12:1 (2021) 2874

Authors:

YW Li, HJ Zheng, YQ Fang, DQ Zhang, YJ Chen, C Chen, AJ Liang, WJ Shi, D Pei, LX Xu, S Liu, J Pan, DH Lu, M Hashimoto, A Barinov, SW Jung, C Cacho, MX Wang, Y He, L Fu, HJ Zhang, FQ Huang, LX Yang, ZK Liu, YL Chen
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Evidence of a topological edge state in a superconducting nonsymmorphic nodal-line semimetal

Physical Review B American Physical Society (APS) 103:20 (2021) l201109

Authors:

LX Xu, YYY Xia, S Liu, YW Li, LY Wei, HY Wang, CW Wang, HF Yang, AJ Liang, K Huang, T Deng, W Xia, X Zhang, HJ Zheng, YJ Chen, LX Yang, MX Wang, YF Guo, G Li, ZK Liu, YL Chen
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Hetero-site nucleation for growing twisted bilayer graphene with a wide range of twist angles

Nature Communications Springer Nature 12:1 (2021) 2391

Authors:

Luzhao Sun, Zihao Wang, Yuechen Wang, Liang Zhao, Yanglizhi Li, Buhang Chen, Shenghong Huang, Shishu Zhang, Wendong Wang, Ding Pei, Hongwei Fang, Shan Zhong, Haiyang Liu, Jincan Zhang, Lianming Tong, Yulin Chen, Zhenyu Li, Mark H Rümmeli, Kostya S Novoselov, Hailin Peng, Li Lin, Zhongfan Liu
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