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  All-Optical Generation of Antiferromagnetic Magnon Currents via the Magnon Circular Photogalvanic Effect

Viñas Boström, E., Parvini, T. S., McIver, J. W., Rubio, A., Viola-Kusminskiy, S., & Sentef, M. A. (2021). All-Optical Generation of Antiferromagnetic Magnon Currents via the Magnon Circular Photogalvanic Effect. Physical Review B, 104(10): L100404. doi:10.1103/PhysRevB.104.L100404.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0009-2045-5 Version Permalink: https://hdl.handle.net/21.11116/0000-0009-6616-C
Genre: Journal Article

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PhysRevB.104.L100404 (Publisher version), 54KB
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PhysRevB.104.L100404
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by the Max Planck Society.
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https://journals.aps.org/prb/abstract/10.1103/PhysRevB.104.L100404 (Publisher version)
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 Creators:
Viñas Boström, Emil1, Author
Parvini, Tahereh S.2, 3, Author           
McIver, James W.1, Author
Rubio, Angel1, 4, Author
Viola-Kusminskiy, Silvia2, 5, Author           
Sentef, Michael A.1, Author
Affiliations:
1Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_persistent22              
2Viola-Kusminskiy Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society, ou_2541695              
3Institute of Physics, University of Greifswald, Felix-Hausdorff-Str. 6, Greifswald, 17489, Germany, ou_persistent22              
4Center for Computational Quantum Physics, The Flatiron Institute, 162 Fifth Avenue, New York, NY 10010, United States of America, ou_persistent22              
5Institute for Theoretical Physics, University of Erlangen-Nürnberg, Staudtstrasse 7, 91058 Erlangen, Germany, ou_persistent22              

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 Abstract: We introduce the magnon circular photogalvanic effect enabled by two-magnon Raman scattering. This provides an all-optical pathway to the generation of directed magnon currents with circularly polarized light in honeycomb antiferromagnetic insulators. The effect is the leading order contribution to magnon photocurrent generation via optical fields. Control of the magnon current by the polarization and angle of incidence of the laser is demonstrated. Experimental detection by sizable inverse spin Hall voltages in platinum contacts is proposed.

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Language(s): eng - English
 Dates: 2021-09-07
 Publication Status: Issued
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 Identifiers: DOI: 10.1103/PhysRevB.104.L100404
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Title: Physical Review B
Source Genre: Journal
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Publ. Info: American Physical Society
Pages: - Volume / Issue: 104 (10) Sequence Number: L100404 Start / End Page: - Identifier: DOI: 10.1103/PhysRevB.104.L100404