Skip to main content
Home
Department Of Physics text logo
  • Research
    • Our research
    • Our research groups
    • Our research in action
    • Research funding support
    • Summer internships for undergraduates
  • Study
    • Undergraduates
    • Postgraduates
  • Engage
    • For alumni
    • For business
    • For schools
    • For the public
Menu
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

Robust kagome electronic structure in the topological quantum magnets XMn₆Sn₆ (X=Dy,Tb,Gd, Y)

Physical Review B American Physical Society 105:15 (2022)

Authors:

X Gu, C Chen, Ws Wei, Ll Gao, Jy Liu, X Du, D Pei, Js Zhou, Rz Xu, Zx Yin, Wx Zhao, Yd Li, C Jozwiak, A Bostwick, E Rotenberg, D Backes, Lsi Veiga, S Dhesi, T Hesjedal, G Van Der Laan, Hf Du, Wj Jiang, Yp Qi, G Li, Wj Shi, Zk Liu, Yl Chen, Lx Yang

Abstract:

Crystal geometry can greatly influence the emergent properties of quantum materials. As an example, the kagome lattice is an ideal platform to study the rich interplay between topology, magnetism, and electronic correlation. In this work, combining high-resolution angleresolved photoemission spectroscopy and ab-initio calculation, we systematically investigate the electronic structure of XMn6Sn6 (X = Dy, Tb, Gd, Y) family compounds. We observe the Dirac fermion and the flat band arising from the magnetic kagome lattice of Mn atoms. Interestingly, the flat band locates in the same energy region in all compounds studied, regardless of their different magnetic ground states and 4f electronic configurations. These observations suggest a robust Mn magnetic kagome lattice across the XMn6Sn6 family, thus providing an ideal platform for the search and investigation on new emergent phenomena in magnetic topological materials.

More details from the publisher
Details from ORA
More details

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
More details from the publisher
More details
More details

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
More details from the publisher

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
More details from the publisher
More details

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
More details from the publisher
More details
More details

Pagination

  • First page First
  • Previous page Prev
  • …
  • Page 14
  • Page 15
  • Page 16
  • Page 17
  • Current page 18
  • Page 19
  • Page 20
  • Page 21
  • Page 22
  • …
  • Next page Next
  • Last page Last

Footer Menu

  • Contact us
  • Giving to the Dept of Physics
  • Work with us
  • Media

User account menu

  • Log in

Follow us

FIND US

Clarendon Laboratory,

Parks Road,

Oxford,

OX1 3PU

CONTACT US

Tel: +44(0)1865272200

University of Oxfrod logo Department Of Physics text logo
IOP Juno Champion logo Athena Swan Silver Award logo

© University of Oxford - Department of Physics

Cookies | Privacy policy | Accessibility statement

Built by: Versantus

  • Home
  • Research
  • Study
  • Engage
  • Our people
  • News & Comment
  • Events
  • Our facilities & services
  • About us
  • Current students
  • Staff intranet