Cited by 258Topological Materials and PhenomenaMagnetic properties of thin filmsAdvanced Condensed Matter Physics

Circular photogalvanic effect on topological insulator surfaces: Berry-curvature-dependent response

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Hosur, Pavan·2011·Physical Review B

Abstract

We study theoretically the optical response of the surface states of a topological insulator, especially the generation of helicity-dependent direct current by circularly polarized light. Interestingly, the dominant current, due to an interband transition, is controlled by the Berry curvature of the surface bands. This extends the connection between photocurrents and Berry curvature beyond the quasiclassical approximation, where it has been shown to hold. Explicit expressions are derived for the (111) surface of the topological insulator Bi${}_{2}$Se${}_{3}$, where we find significant helicity-dependent photocurrents when the rotational symmetry of the surface is broken by an in-plane magnetic field or a strain. Moreover, the dominant current grows linearly with time until a scattering occurs, which provides a means for determining the scattering time. The dc spin generated on the surface is also dominated by a linear-in-time, Berry curvature-dependent contribution.

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Crossref · 10.1103/physrevb.83.035309

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  • Nonlinear optical effects such as high harmonic generation, photovoltaic effects, shift currents, and nonlinear Kerr rotations are related to the Berry connection and Berry curvature.

    “Generally these effects such as high harmonic generation, photovoltaic effects, shift (dc) currents, and nonlinear Kerr rotations, are related to the Berry connection and Berry curvature (Hosur, 2011; Moore and Orenstein, 2010).”

    From Weyl and Dirac semimetals in three-dimensional solids (2018) · cites this paper as Hosur, 2011

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Authors
Hosur, P.
Affiliations
University of California, Berkeley (US)
Corresponding author
Hosur, Pavan
Venue
Physical Review B
Published
2011-01-18
Volume
83
Issue
3
ISSN
  • 1098-0121 (ISSN-L)
  • 1550-235X
OpenAlex
W1590742110
Cited by
258
References
9
Citations by year
2026: 14 · 2025: 17 · 2024: 17 · 2023: 16 · 2022: 16 · 2021: 21 · 2020: 19 · 2019: 8 · 2018: 28 · 2017: 25 · 2016: 11 · 2015: 16 · 2014: 16 · 2013: 19 · 2012: 7
FWCI
8.68
Type
journal article
Language
en
Open access
Locations
  • Physical Review B (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • arXiv (Cornell University)
Funders
U.S. Department of Energy
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Topological Materials and Phenomena
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Magnetic properties of thin films
  • Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Advanced Condensed Matter Physics
Keywords
circular photogalvanic effect, topological insulators, surface states, Berry curvature, helicity-dependent photocurrent, Bi2Se3, (111) surface, interband transitions, in-plane magnetic field, strain, spin generation, scattering time, semiclassical approximation

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