Discovery of topological Weyl fermion lines and drumhead surface states in a room temperature magnet
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- Ilya Belopolski
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
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- Kaustuv Manna
- Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187 Dresden, Germany.
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- Daniel S. Sanchez
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
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- Guoqing Chang
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
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- Benedikt Ernst
- Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187 Dresden, Germany.
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- Jiaxin Yin
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
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- Songtian S. Zhang
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
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- Tyler Cochran
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
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- Nana Shumiya
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
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- Hao Zheng
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
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- Bahadur Singh
- 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.
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- Guang Bian
- Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA.
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- Daniel Multer
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
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- Maksim Litskevich
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
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- Xiaoting Zhou
- Department of Physics, National Cheng Kung University, Tainan 701, Taiwan.
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- Shin-Ming Huang
- Department of Physics, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
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- Baokai Wang
- Department of Physics, Northeastern University, Boston, MA 02115, USA.
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- Tay-Rong Chang
- Department of Physics, National Cheng Kung University, Tainan 701, Taiwan.
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- Su-Yang Xu
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
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- Arun Bansil
- Department of Physics, Northeastern University, Boston, MA 02115, USA.
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- Claudia Felser
- Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187 Dresden, Germany.
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- Hsin Lin
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan.
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- M. Zahid Hasan
- Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University, Princeton, NJ 08544, USA.
書誌事項
- 公開日
- 2019-09-20
- DOI
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- 10.1126/science.aav2327
- 公開者
- American Association for the Advancement of Science (AAAS)
この論文をさがす
説明
<jats:title>Magnetic Weyl semimetals</jats:title> <jats:p> 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 <jats:italic>et al.</jats:italic> probed the material Co <jats:sub>2</jats:sub> MnGa using angle-resolved photoemission spectroscopy, revealing exotic drumhead surface states. Using the same technique, Liu <jats:italic>et al.</jats:italic> studied the material Co <jats:sub>3</jats:sub> Sn <jats:sub>2</jats:sub> S <jats:sub>2</jats:sub> , which was complemented by the scanning tunneling spectroscopy measurements of Morali <jats:italic>et al.</jats:italic> These magnetic WSM states provide an ideal setting for exotic transport effects. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6459" page="1278" related-article-type="in-this-issue" vol="365" xlink:href="10.1126/science.aav2327">1278</jats:related-article> , p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6459" page="1282" related-article-type="in-this-issue" vol="365" xlink:href="10.1126/science.aav2873">1282</jats:related-article> , p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6459" page="1286" related-article-type="in-this-issue" vol="365" xlink:href="10.1126/science.aav2334">1286</jats:related-article> ; see also p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6459" page="1248" related-article-type="in-this-issue" vol="365" xlink:href="10.1126/science.aax6190">1248</jats:related-article> </jats:p>
収録刊行物
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- Science
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Science 365 (6459), 1278-1281, 2019-09-20
American Association for the Advancement of Science (AAAS)
