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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

Measurement of Superconductivity and Edge States in Topological Superconductor Candidate TaSe3 Supported by the National Key R&D Program of China (Grant No. 2017YFA0305400), the Shanghai Technology Innovation Action Plan 2020-Integrated Circuit Technology Support Program (Grant No. 20DZ1100605), the National Natural Science Foundation of China (Grant Nos. 52072168, 21733001, 51861145201, U1932217, and 11974246), the National Key Basic Research Program of China (Grant No. 2018YFA0306200), and the Science and Technology Commission of Shanghai Municipality (Grant No. 19JC1413900).

Chinese Physics Letters IOP Publishing 38:7 (2021) 077302

Authors:

Shuai Liu, Si-Min Nie, Yan-Peng Qi, Yan-Feng Guo, Hong-Tao Yuan, Le-Xian Yang, Yu-Lin Chen, Mei-Xiao Wang, Zhong-Kai Liu
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Experimental evidence for a metastable state in FeTe1−x Se x following coherent-phonon excitation

Journal of Electron Spectroscopy and Related Phenomena Elsevier 250 (2021) 147085

Authors:

LX Yang, G Rohde, YJ Chen, WJ Shi, ZK Liu, F Chen, YL Chen, K Rossnagel, M Bauer
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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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