Publication

Symmetry regimes for circular photocurrents in monolayer MoSe2

Quereda, J., Ghiasi, T. S., You, J-S., Brink, J. V. D., van Wees, B. J. & Wal, C. H. V. D., 21-Aug-2018, In : Nature Communications. 9, 8 p., 3346.

Research output: Contribution to journalArticleAcademicpeer-review

APA

Quereda, J., Ghiasi, T. S., You, J-S., Brink, J. V. D., van Wees, B. J., & Wal, C. H. V. D. (2018). Symmetry regimes for circular photocurrents in monolayer MoSe2. Nature Communications, 9, [3346]. https://doi.org/10.1038/s41467-018-05734-z

Author

Quereda, Jorge ; Ghiasi, Talieh S. ; You, Jhih-Shih ; Brink, Jeroen van den ; van Wees, Bart J. ; Wal, Caspar H. van der. / Symmetry regimes for circular photocurrents in monolayer MoSe2. In: Nature Communications. 2018 ; Vol. 9.

Harvard

Quereda, J, Ghiasi, TS, You, J-S, Brink, JVD, van Wees, BJ & Wal, CHVD 2018, 'Symmetry regimes for circular photocurrents in monolayer MoSe2' Nature Communications, vol. 9, 3346. https://doi.org/10.1038/s41467-018-05734-z

Standard

Symmetry regimes for circular photocurrents in monolayer MoSe2. / Quereda, Jorge; Ghiasi, Talieh S.; You, Jhih-Shih; Brink, Jeroen van den; van Wees, Bart J. ; Wal, Caspar H. van der.

In: Nature Communications, Vol. 9, 3346, 21.08.2018.

Research output: Contribution to journalArticleAcademicpeer-review

Vancouver

Quereda J, Ghiasi TS, You J-S, Brink JVD, van Wees BJ, Wal CHVD. Symmetry regimes for circular photocurrents in monolayer MoSe2. Nature Communications. 2018 Aug 21;9. 3346. https://doi.org/10.1038/s41467-018-05734-z


BibTeX

@article{c2e2d9200a1a4ad686f6ce9e2fe4240d,
title = "Symmetry regimes for circular photocurrents in monolayer MoSe2",
abstract = "In monolayer transition metal dichalcogenides helicity-dependent charge and spin photocurrents can emerge, even without applying any electrical bias, due to circular photogalvanic and photon drag effects. Exploiting such circular photocurrents (CPC) in devices, however, requires better understanding of their behavior and physical origin. Here, we present symmetry, spectral, and electrical characteristics of CPC from excitonic interband transitions in a MoSe2 monolayer. The dependence on bias and gate voltages reveals two different CPC contributions, dominant at different voltages and with different dependence on illumination wavelength and incidence angles. We theoretically analyze symmetry requirements for effects that can yield CPC and compare these with the observed angular dependence and symmetries that occur for our device geometry. This reveals that the observed CPC effects require a reduced device symmetry, and that effects due to Berry curvature of the electronic states do not give a significant contribution.",
keywords = "cond-mat.mtrl-sci, SPECTROSCOPY",
author = "Jorge Quereda and Ghiasi, {Talieh S.} and Jhih-Shih You and Brink, {Jeroen van den} and {van Wees}, {Bart J.} and Wal, {Caspar H. van der}",
year = "2018",
month = "8",
day = "21",
doi = "10.1038/s41467-018-05734-z",
language = "English",
volume = "9",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Symmetry regimes for circular photocurrents in monolayer MoSe2

AU - Quereda, Jorge

AU - Ghiasi, Talieh S.

AU - You, Jhih-Shih

AU - Brink, Jeroen van den

AU - van Wees, Bart J.

AU - Wal, Caspar H. van der

PY - 2018/8/21

Y1 - 2018/8/21

N2 - In monolayer transition metal dichalcogenides helicity-dependent charge and spin photocurrents can emerge, even without applying any electrical bias, due to circular photogalvanic and photon drag effects. Exploiting such circular photocurrents (CPC) in devices, however, requires better understanding of their behavior and physical origin. Here, we present symmetry, spectral, and electrical characteristics of CPC from excitonic interband transitions in a MoSe2 monolayer. The dependence on bias and gate voltages reveals two different CPC contributions, dominant at different voltages and with different dependence on illumination wavelength and incidence angles. We theoretically analyze symmetry requirements for effects that can yield CPC and compare these with the observed angular dependence and symmetries that occur for our device geometry. This reveals that the observed CPC effects require a reduced device symmetry, and that effects due to Berry curvature of the electronic states do not give a significant contribution.

AB - In monolayer transition metal dichalcogenides helicity-dependent charge and spin photocurrents can emerge, even without applying any electrical bias, due to circular photogalvanic and photon drag effects. Exploiting such circular photocurrents (CPC) in devices, however, requires better understanding of their behavior and physical origin. Here, we present symmetry, spectral, and electrical characteristics of CPC from excitonic interband transitions in a MoSe2 monolayer. The dependence on bias and gate voltages reveals two different CPC contributions, dominant at different voltages and with different dependence on illumination wavelength and incidence angles. We theoretically analyze symmetry requirements for effects that can yield CPC and compare these with the observed angular dependence and symmetries that occur for our device geometry. This reveals that the observed CPC effects require a reduced device symmetry, and that effects due to Berry curvature of the electronic states do not give a significant contribution.

KW - cond-mat.mtrl-sci

KW - SPECTROSCOPY

UR - https://arxiv.org/abs/1803.08289

U2 - 10.1038/s41467-018-05734-z

DO - 10.1038/s41467-018-05734-z

M3 - Article

VL - 9

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 3346

ER -

ID: 56214496