Prof Yulin Chen: Publications

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.

Topological Surface Dirac Fermion in BiTeCl-Based Heterostructures

SPIN World Scientific Publishing 09:04 (2019) 1940015

Authors:

T Zhang, YJ Chen, SC Sun, L Kang, LX Yang, ZK Liu, HJ Zhang, YL Chen

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Topological Electronic Structure and Its Temperature Evolution in Antiferromagnetic Topological Insulator MnBi2Te4

Physical Review X American Physical Society (APS) 9:4 (2019) 041040

Authors:

YJ Chen, LX Xu, JH Li, YW Li, HY Wang, CF Zhang, H Li, Y Wu, AJ Liang, C Chen, SW Jung, C Cacho, YH Mao, S Liu, MX Wang, YF Guo, Y Xu, ZK Liu, LX Yang, YL Chen

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Magnetic Weyl semimetal phase in a Kagomé crystal

Science American Association for the Advancement of Science 365:6459 (2019) 1282-1285

Authors:

DF Liu, AJ Liang, EK Liu, QN Xu, Yiwei Li, C Chen, D Pei, WJ Shi, SK Mo, P Dudin, T Kim, C Cacho, G Li, Y Sun, LX Yang, ZK Liu, SSP Parkin, C Felser, Yulin Chen

Abstract:

Weyl semimetals are crystalline solids that host emergent relativistic Weyl fermions and have characteristic surface Fermi-arcs in their electronic structure. Weyl semimetals with broken time reversal symmetry are difficult to identify unambiguously. In this work, using angle-resolved photoemission spectroscopy, we visualized the electronic structure of the ferromagnetic crystal Co3Sn2S2 and discovered its characteristic surface Fermi-arcs and linear bulk band dispersions across the Weyl points. These results establish Co3Sn2S2 as a magnetic Weyl semimetal that may serve as a platform for realizing phenomena such as chiral magnetic effects, unusually large anomalous Hall effect and quantum anomalous Hall effect.

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Topological Lifshitz transitions and Fermi arc manipulation in Weyl semimetal NbAs

Nature Communications Springer Nature 10:1 (2019) 3478

Authors:

HF Yang, LX Yang, ZK Liu, Y Sun, C Chen, H Peng, M Schmidt, D Prabhakaran, BA Bernevig, C Felser, BH Yan, YL Chen

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Chiral topological semimetal with multifold band crossings and long Fermi arcs

Nature Physics Springer Nature 15:8 (2019) 759-765

Authors:

Niels BM Schröter, Ding Pei, Maia G Vergniory, Yan Sun, Kaustuv Manna, Fernando de Juan, Jonas A Krieger, Vicky Süss, Marcus Schmidt, Pavel Dudin, Barry Bradlyn, Timur K Kim, Thorsten Schmitt, Cephise Cacho, Claudia Felser, Vladimir N Strocov, Yulin Chen

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Prof Yulin Chen

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Topological Surface Dirac Fermion in BiTeCl-Based Heterostructures

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Topological Electronic Structure and Its Temperature Evolution in Antiferromagnetic Topological Insulator MnBi2Te4

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Magnetic Weyl semimetal phase in a Kagomé crystal

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Abstract:

Topological Lifshitz transitions and Fermi arc manipulation in Weyl semimetal NbAs

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Chiral topological semimetal with multifold band crossings and long Fermi arcs

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Prof Yulin Chen

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Topological Surface Dirac Fermion in BiTeCl-Based Heterostructures

Authors:

Topological Electronic Structure and Its Temperature Evolution in Antiferromagnetic Topological Insulator MnBi2Te4

Authors:

Magnetic Weyl semimetal phase in a Kagomé crystal

Authors:

Abstract:

Topological Lifshitz transitions and Fermi arc manipulation in Weyl semimetal NbAs

Authors:

Chiral topological semimetal with multifold band crossings and long Fermi arcs

Authors: