Cited by 48Topological Materials and Phenomena2D Materials and ApplicationsLaser-Matter Interactions and Applications

Photocurrent-driven transient symmetry breaking in the Weyl semimetal TaAs

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Sirica, N., Orth, P. P., Scheurer, M. S., Dai, Y. M., Lee, M.-C., Padmanabhan, P., Mix, L. T., Teitelbaum, S. W. +18 more·2022·Nature Materials

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Abstract

Symmetry plays a central role in conventional and topological phases of matter, making the ability to optically drive symmetry changes a critical step in developing future technologies that rely on such control. Topological materials, like topological semimetals, are particularly sensitive to a breaking or restoring of time-reversal and crystalline symmetries, which affect both bulk and surface electronic states. While previous studies have focused on controlling symmetry via coupling to the crystal lattice, we demonstrate here an all-electronic mechanism based on photocurrent generation. Using second harmonic generation spectroscopy as a sensitive probe of symmetry changes, we observe an ultrafast breaking of time-reversal and spatial symmetries following femtosecond optical excitation in the prototypical type-I Weyl semimetal TaAs. Our results show that optically driven photocurrents can be tailored to explicitly break electronic symmetry in a generic fashion, opening up the possibility of driving phase transitions between symmetry-protected states on ultrafast timescales.

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  • PT-conserved second-order nonlinear responses can emerge in the presence of net linear momentum, such as in the photon drag effect or transient photocurrents.

    “It is interesting to note that -conserved (but and broken) second-order nonlinear responses can also emerge in the presence of net linear momentum, such as in the photon drag effect (with net photon momentum) or transient photocurrents (net charge momentum)11,60.”

    From Ultrafast terahertz emission from emerging symmetry-broken materials (2023) · cites this paper as [60]

    The Introduction reports that transient photocurrents produce symmetry changes detected by second-harmonic generation, supporting the photocurrent example. It also says TaAs lacks inversion symmetry, and the paper does not establish that the observed response conserves combined PT symmetry. The cited passages do not address photon drag. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Manipulating an optically driven photocurrent on the ultrafast timescales intrinsic to its generation and decay can generically break electronic symmetries by exploiting the polarization dependence of photocurrents underlying the linear photogalvanic effect.

    “By manipulating such an optically driven photocurrent on the ultrafast timescales intrinsic to its generation and decay, it is possible to generically break electronic symmetries through exploiting the polarization dependence of photocurrents underlying the linear photogalvanic effect60.”

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Research works printed but not linked: 3

  1. M. Z. Hasan and C. L. Kane, Colloquium: Topological insulators, Rev. Mod. Phys. 82, 3045 (2010).
  2. G. Xu, H. Weng, Z. Wang, X. Dai, and Z. Fang, Chern Semimetal and the Quantized Anomalous Hall Effect in HgCr 2 Se4, Phys. Rev. Lett. 107, 186806 (2011).
  3. J. W. Harter, Z. Y. Zhao, J.-Q. Yan, D. G. Mandrus, and D. Hsieh, A parity-breaking electronic nematic phase transition in the spin-orbit coupled metal Cd2Re2O7, Sci- ence 356, 295 (2017).

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Authors
Sirica, N., Orth, P. P., Scheurer, M. S., Dai, Y. M., Lee, M.-C., Padmanabhan, P., Mix, L. T., Teitelbaum, S. W., Trigo, M., Zhao, L. X., Chen, G. F., Xu, B., Yang, R., Shen, B., Hu, C., Lee, C.-C., Lin, H., Cochran, T. A., Trugman, S. A., Zhu, J.-X., Hasan, M. Z., Ni, N., Qiu, X. G., Taylor, A. J., Yarotski, D. A., & Prasankumar, R. P.
Affiliations
  • Los Alamos National Laboratory (US)
  • Iowa State University (US)
  • Universität Innsbruck (AT)
  • Arizona State University (US)
  • SLAC National Accelerator Laboratory (US)
  • Chinese Academy of Sciences (CN)
  • University of California, Los Angeles (US)
  • Tamkang University (TW)
  • Institute of Physics, Academia Sinica (TW)
  • Princeton University (US)
  • Lawrence Berkeley National Laboratory (US)
Venue
Nature Materials
Published
2021-11-08
Volume
21
Issue
1
Pages
62-66
ISSN
  • 1476-1122 (ISSN-L)
  • 1476-4660
OpenAlex
W3026895876
Cited by
9
References
74
Citations by year
2024: 2 · 2023: 1 · 2022: 1 · 2021: 5
FWCI
0.97
Type
journal article
Language
en
Open access
Locations
  • Nature Materials (publishedVersion)
  • Research Square (acceptedVersion, cc-by)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • Iowa State University Digital Repository (Iowa State University) (submittedVersion)
  • Iowa State University Digital Repository (Iowa State University) (submittedVersion, cc-by)
  • eScholarship (California Digital Library) (submittedVersion, cc-by-nc)
  • arXiv (Cornell University)
Funders
  • DOE | LDRD | Los Alamos National Laboratory (20200240ER)
  • U.S. Department of Energy (DE-AC02-07CH11358, DE-AC02-76SF00515, DE-SC0021117, DE-FG-02-05ER46200)
  • National Science Foundation (DMR-1664842, Julian Schwinger Fellowship, DGE-1656466)
  • Ministry of Science and Technology, Taiwan (MOST 108-2112-M-032-010-MY2)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Topological Materials and Phenomena
  • Physical Sciences › Materials Science › Materials Chemistry › 2D Materials and Applications
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
Keywords
thoracic aortic aneurysm, Weyl semimetals, photocurrent, time-reversal symmetry, spatial symmetry, second harmonic generation spectroscopy, ultrafast dynamics, femtosecond optical excitation, topological semimetals

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