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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

Signature of type-II Weyl semimetal phase in MoTe2

Nature Communications Springer Nature 8:1 (2017) 13973

Authors:

J Jiang, ZK Liu, Y Sun, HF Yang, CR Rajamathi, YP Qi, LX Yang, C Chen, H Peng, C-C Hwang, SZ Sun, S-K Mo, I Vobornik, J Fujii, SSP Parkin, C Felser, BH Yan, YL Chen
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Distinct Electronic Structure for the Extreme Magnetoresistance in YSb

Physical Review Letters American Physical Society (APS) 117:26 (2016) 267201

Authors:

Junfeng He, Chaofan Zhang, Nirmal J Ghimire, Tian Liang, Chunjing Jia, Juan Jiang, Shujie Tang, Sudi Chen, Yu He, S-K Mo, CC Hwang, M Hashimoto, DH Lu, B Moritz, TP Devereaux, YL Chen, JF Mitchell, Z-X Shen
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Topological insulators: Engineered heterostructures

Nature Materials Nature Publishing Group 16:1 (2016) 3-4

Authors:

Thorsten Hesjedal, Y Chen

Abstract:

The combination of topological properties and magnetic order can lead to new quantum states and exotic physical phenomena. In particular, the coupling between topological insulators and antiferromagnets enables magnetic and electronic structural engineering.
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Evidence of Both Surface and Bulk Dirac Bands and Anisotropic Nonsaturating Magnetoresistance in ZrSiS

Advanced Electronic Materials Wiley 2:10 (2016)

Authors:

Xuefeng Wang, Xingchen Pan, Ming Gao, Jihai Yu, Juan Jiang, Junran Zhang, Huakun Zuo, Minhao Zhang, Zhongxia Wei, Wei Niu, Zhengcai Xia, Xiangang Wan, Yulin Chen, Fengqi Song, Yongbing Xu, Baigeng Wang, Guanghou Wang, Rong Zhang
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Quantum Electronics: Evidence of Both Surface and Bulk Dirac Bands and Anisotropic Nonsaturating Magnetoresistance in ZrSiS (Adv. Electron. Mater. 10/2016)

Advanced Electronic Materials Wiley 2:10 (2016)

Authors:

Xuefeng Wang, Xingchen Pan, Ming Gao, Jihai Yu, Juan Jiang, Junran Zhang, Huakun Zuo, Minhao Zhang, Zhongxia Wei, Wei Niu, Zhengcai Xia, Xiangang Wan, Yulin Chen, Fengqi Song, Yongbing Xu, Baigeng Wang, Guanghou Wang, Rong Zhang
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