Creating stable Floquet-Weyl semimetals by laser-driving of 3D Dirac materials

Hübener, Hannes; Sentef, M. A.; de Giovannini, Umberto; Kemper, Alexander F.; Rubio, A.

doi:10.1038/ncomms13940

Creating stable Floquet-Weyl semimetals by laser-driving of 3D Dirac materials

Hübener, H., Sentef, M. A., de Giovannini, U., Kemper, A. F., & Rubio, A. (2017). Creating stable Floquet-Weyl semimetals by laser-driving of 3D Dirac materials. Nature Communications, 8:. doi:10.1038/ncomms13940.

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アイテムのパーマリンク: https://hdl.handle.net/11858/00-001M-0000-002A-321F-E 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0004-BF39-6

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This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material.

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作成者:
Hübener, Hannes¹, 著者
Sentef, M. A.^{2, 3}, 著者
de Giovannini, Umberto^{1, 2}, 著者
Kemper, Alexander F.⁴, 著者
Rubio, A.^{1, 5, 6}, 著者

所属:
1Nano-Bio Spectroscopy Group and ETSF, Universidad del País Vasco, CFM CSIC-UPV/EHU, 20018 San Sebastián, Spain, ou_persistent22
2Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, ou_persistent22
3Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3012828
4Department of Physics, North Carolina State University, Raleigh, NC 27695-8202, USA, ou_persistent22
5Center for Free-Electron Laser Science, 22761 Hamburg, Germany, ou_persistent22
6Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715

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キーワード: TOPOLOGICAL INSULATOR; FERMI ARCS; ULTRAHIGH MOBILITY; CD3AS2; DISCOVERY; GRAPHENE; SURFACE; TAAS; MAGNETORESISTANCE; SUPERCONDUCTORS

要旨: Tuning and stabilizing topological states, such as Weyl semimetals, Dirac semimetals or topological insulators, is emerging as one of the major topics in materials science. Periodic driving of many-body systems offers a platform to design Floquet states of matter with tunable electronic properties on ultrafast timescales. Here we show by first principles calculations how femtosecond laser pulses with circularly polarized light can be used to switch between Weyl semimetal, Dirac semimetal and topological insulator states in a prototypical three-dimensional (3D) Dirac material, Na3Bi. Our findings are general and apply to any 3D Dirac semimetal. We discuss the concept of time-dependent bands and steering of Floquet–Weyl points and demonstrate how light can enhance topological protection against lattice perturbations. This work has potential practical implications for the ultrafast switching of materials properties, such as optical band gaps or anomalous magnetoresistance.

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言語: eng - English

日付: 投稿: 2016-04-15受理: 2016-11-15オンライン出版: 2017-01-17

出版の状態: オンラインで出版済み

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識別子（DOI, ISBNなど）: DOI: 10.1038/ncomms13940
arXiv: 1604.03399

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Project name : We are grateful to Peizhe Tang for stimulating discussions and a critical reading of our manuscript and to Ashvin Vishwanath for helpful discussions. We acknowledge financial support from the European Research Council (ERC-2015-AdG-694097), Grupos Consolidados (IT578-13), Spanish grant (FIS2013-46159-C3-1-P), AFOSR Grant No. FA2386-15-1-0006 AOARD 144088, COST Action MP1306 (EUSpec). H.H. acknowledges support from the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme FP7-PEOPLE-2013-IEF project No. 622934. A.F.K. thanks the Aspen Center for Physics (supported by National Science Foundation grant PHY-1066293) for their hospitality during part of this work. M.A.S. acknowledges support by the Deutsche Forschungsgemeinschaft through the Emmy Noether programme.

Grant ID : 622934

Funding program : Funding Programme 7 (FP7)

Funding organization : European Commission (EC)

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出版物名: Nature Communications

省略形 : Nat. Commun.

種別: 学術雑誌

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出版社, 出版地: London : Nature Publishing Group

ページ: - 巻号: 8 通巻号: 13940 開始・終了ページ: - 識別子（ISBN, ISSN, DOIなど）: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723

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