Published January 15, 2017
| Supplemental Material + Published + Submitted
Journal Article
Open
Photocurrents in Weyl semimetals
Abstract
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.
Additional Information
© 2017 American Physical Society. Received 13 August 2016; revised manuscript received 16 November 2016; published 13 January 2017. We thank Nuh Gedik for very helpful discussions. P.A.L. acknowledges the support from DOE Grant No. DE-FG02-03-ER46076 and the Simons Fellows Program. G.R. acknowledges the supported from NSF through DMR-1410435. N.H.L. acknowledges supports from I-Core, the Israeli excellence center Circle of Light, the People Programme (Marie Curie Actions) of the European Union's Seventh Framework under REA Grant Agreement No. 631696 and financial support from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (Grant Agreement No. 639172). P.A.L. and C.-K.C. thank the hospitality of the CMT group at Caltech where this work was carried out. G.R. thanks the Aspen Center for Physics where a part of the work was done.Attached Files
Published - PhysRevB.95.041104.pdf
Submitted - 1607.07839v2.pdf
Supplemental Material - Weyl_photocurrent_supplement.pdf
Files
1607.07839v2.pdf
Additional details
- Eprint ID
- 73558
- Resolver ID
- CaltechAUTHORS:20170119-140307907
- DE-FG02-03-ER46076
- Department of Energy (DOE)
- Simons Foundation
- DMR-1410435
- NSF
- I-CORE Program of the Planning and Budgeting Committee
- Israeli Excellence Center Circle of Light
- 631696
- Marie Curie Fellowship
- 639172
- European Research Council (ERC)
- Created
-
2017-01-19Created from EPrint's datestamp field
- Updated
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2021-11-11Created from EPrint's last_modified field
- Caltech groups
- Institute for Quantum Information and Matter