Photocurrents in Weyl semimetals
Author(s)
Lindner, Netanel H.; Refael, Gil; Chan, Ching-Kit; Lee, Patrick A
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The generation of photocurrent in an ideal two-dimensional Dirac spectrum is symmetry forbidden. In sharp contrast, we show that three-dimensional Weyl semimetals can generically support significant photocurrents due to the combination of inversion symmetry breaking and finite tilts of the Weyl spectra. Symmetry properties, chirality relations, and various dependencies of this photovoltaic effect on the system and the light source are explored in detail. Our results suggest that noncentrosymmetric Weyl materials can be advantageously applied to room temperature detections of mid- and far-infrared radiations.
Date issued
2017-01Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Physical Review B
Publisher
American Physical Society
Citation
Chan, Ching-Kit; Lindner, Netanel H.; Refael, Gil and Lee, Patrick A. "Photocurrents in Weyl semimetals." Physical Review B 95, 041104 (January 2017): 1-5 ©2017 American Physical Society
Version: Final published version
ISSN
2469-9950
2469-9969