Discovery of topological Weyl fermion lines and drumhead surface states in a room temperature magnet-Reference-Cited by-全球学者库

Discovery of topological Weyl fermion lines and drumhead surface states in a room temperature magnet

Published:2019-09-20 Issue:6459 Volume:365 Page:1278-1281
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Belopolski Ilya¹^ORCID,Manna Kaustuv²^ORCID,Sanchez Daniel S.¹^ORCID,Chang Guoqing¹^ORCID,Ernst Benedikt²,Yin Jiaxin¹,Zhang Songtian S.¹^ORCID,Cochran Tyler¹^ORCID,Shumiya Nana¹^ORCID,Zheng Hao¹,Singh Bahadur³^ORCID,Bian Guang⁴,Multer Daniel¹,Litskevich Maksim¹^ORCID,Zhou Xiaoting⁵^ORCID,Huang Shin-Ming⁶^ORCID,Wang Baokai⁷,Chang Tay-Rong⁵^ORCID,Xu Su-Yang¹,Bansil Arun⁷,Felser Claudia²^ORCID,Lin Hsin⁸^ORCID,Hasan M. Zahid¹⁹¹⁰^ORCID

Affiliation:

1. Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.

2. Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187 Dresden, Germany.

3. SZU-NUS Collaborative Center and International Collaborative Laboratory of 2D Materials for Optoelectronic Science and Technology, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

4. Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA.

5. Department of Physics, National Cheng Kung University, Tainan 701, Taiwan.

6. Department of Physics, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.

7. Department of Physics, Northeastern University, Boston, MA 02115, USA.

8. Institute of Physics, Academia Sinica, Taipei 11529, Taiwan.

9. Princeton Institute for Science and Technology of Materials, Princeton University, Princeton, NJ, 08544, USA.

10. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

Abstract

Magnetic Weyl semimetals Weyl semimetals (WSMs)—materials that host exotic quasiparticles called Weyl fermions—must break either spatial inversion or time-reversal symmetry. A number of WSMs that break inversion symmetry have been identified, but showing unambiguously that a material is a time-reversal-breaking WSM is tricky. Three groups now provide spectroscopic evidence for this latter state in magnetic materials (see the Perspective by da Silva Neto). Belopolski et al. probed the material Co 2 MnGa using angle-resolved photoemission spectroscopy, revealing exotic drumhead surface states. Using the same technique, Liu et al. studied the material Co 3 Sn 2 S 2 , which was complemented by the scanning tunneling spectroscopy measurements of Morali et al. These magnetic WSM states provide an ideal setting for exotic transport effects. Science , this issue p. 1278 , p. 1282 , p. 1286 ; see also p. 1248

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference39 articles.

1. The strange topology that is reshaping physics

2. The physics of quantum materials

3. Towards properties on demand in quantum materials

4. Emergent functions of quantum materials

5. Colloquium: Topological band theory

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