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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 Γ-Valley Moiré Bands and Emergent Hexagonal Lattice in Twisted Transition Metal Dichalcogenides

Physical Review X American Physical Society (APS) 12:2 (2022) 021065

Authors:

Ding Pei, Binbin Wang, Zishu Zhou, Zhihai He, Liheng An, Shanmei He, Cheng Chen, Yiwei Li, Liyang Wei, Aiji Liang, Jose Avila, Pavel Dudin, Viktor Kandyba, Alessio Giampietri, Mattia Cattelan, Alexei Barinov, Zhongkai Liu, Jianpeng Liu, Hongming Weng, Ning Wang, Jiamin Xue, Yulin Chen
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Quantum Oscillations in Noncentrosymmetric Weyl Semimetal SmAlSi

Chinese Physics Letters IOP Publishing 39:4 (2022) 047501

Authors:

Weizheng Cao, Yunlong Su, Qi Wang, Cuiying Pei, Lingling Gao, Yi Zhao, Changhua Li, Na Yu, Jinghui Wang, Zhongkai Liu, Yulin Chen, Gang Li, Jun Li, Yanpeng Qi
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Electronic structure and spin–orbit coupling in ternary transition metal chalcogenides Cu2TlX 2 (X = Se, Te)

Chinese Physics B IOP Publishing 31:3 (2022) 037101

Authors:

Na Qin, Xian Du, Yangyang Lv, Lu Kang, Zhongxu Yin, Jingsong Zhou, Xu Gu, Qinqin Zhang, Runzhe Xu, Wenxuan Zhao, Yidian Li, Shuhua Yao, Yanfeng Chen, Zhongkai Liu, Lexian Yang, Yulin Chen
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Direct observation of the spin–orbit coupling effect in magnetic Weyl semimetal Co3Sn2S2

npj Quantum Materials Springer Nature 7:1 (2022) 11

Authors:

DF Liu, EK Liu, QN Xu, JL Shen, YW Li, D Pei, AJ Liang, P Dudin, TK Kim, C Cacho, YF Xu, Y Sun, LX Yang, ZK Liu, C Felser, SSP Parkin, YL Chen
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Pressure-induced superconductivity and structure phase transition in Pt2HgSe3

npj Quantum Materials Springer Nature 6:1 (2021) 98

Authors:

Cuiying Pei, Suhua Jin, Peihao Huang, Anna Vymazalova, Lingling Gao, Yi Zhao, Weizheng Cao, Changhua Li, Peter Nemes-Incze, Yulin Chen, Hanyu Liu, Gang Li, Yanpeng Qi
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