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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

Hybridization and correlation between f- and d-orbital electrons in a valence fluctuating compound EuNi2P2

Physical Review B American Physical Society (APS) 105:24 (2022) 245106

Authors:

ZX Yin, X Du, WZ Cao, J Jiang, C Chen, SR Duan, JS Zhou, X Gu, RZ Xu, QQ Zhang, WX Zhao, YD Li, Yi-feng Yang, HF Yang, AJ Liang, ZK Liu, H Yao, YP Qi, YL Chen, LX Yang
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Observation of dimension-crossover of a tunable 1D Dirac fermion in topological semimetal NbSixTe2

npj Quantum Materials Springer Nature 7:1 (2022) 54

Authors:

Jing Zhang, Yangyang Lv, Xiaolong Feng, Aiji Liang, Wei Xia, Sung-Kwan Mo, Cheng Chen, Jiamin Xue, Shengyuan A Yang, Lexian Yang, Yanfeng Guo, Yanbin Chen, Yulin Chen, Zhongkai Liu
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Measurement of electronic structure in van der Waals ferromagnet Fe5–x GeTe2

Chinese Physics B IOP Publishing 31:5 (2022) 057404

Authors:

Kui Huang, Zhenxian Li, Deping Guo, Haifeng Yang, Yiwei Li, Aiji Liang, Fan Wu, Lixuan Xu, Lexian Yang, Wei Ji, Yanfeng Guo, Yulin Chen, Zhongkai Liu
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Observation of nontrivial topological electronic structure of orthorhombic SnSe

Physical Review Materials American Physical Society (APS) 6:5 (2022) 054201

Authors:

HJ Zheng, WJ Shi, CW Wang, YY Lv, W Xia, BH Li, F Wu, SM He, K Huang, ST Cui, C Chen, HF Yang, AJ Liang, MX Wang, Z Sun, SH Yao, YB Chen, YF Guo, QX Mi, LX Yang, MS Bahramy, ZK Liu, YL Chen
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Pressure-induced superconductivity in the noncentrosymmetric Weyl semimetals LaAlX (X=Si,Ge)

Physical Review B American Physical Society (APS) 105:17 (2022) 174502

Authors:

Weizheng Cao, Ningning Zhao, Cuiying Pei, Qi Wang, Qinghua Zhang, Tianping Ying, Yi Zhao, Lingling Gao, Changhua Li, Na Yu, Lin Gu, Yulin Chen, Kai Liu, Yanpeng Qi
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