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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., Kusminskiy, S. V., & Sentef, M. A. (2021). All-Optical Generation of Antiferromagnetic Magnon Currents via the Magnon Circular Photogalvanic Effect.

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2104.10914.pdf (Preprint), 4MB
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https://arxiv.org/abs/2104.10914 (Preprint)
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 Creators:
Viñas Boström, E.1, 2, Author              
Parvini, T. S.3, 4, Author
McIver, J. W.2, 5, Author              
Rubio, A.1, 2, 6, Author              
Kusminskiy, S. V.3, 7, Author
Sentef, M. A.2, 8, Author              
Affiliations:
1Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
2Center for Free Electron Laser Science (CFEL), ou_persistent22              
3Max Planck Institute for the Science of Light, ou_persistent22              
4Institute of Physics, University of Greifswald, ou_persistent22              
5Non-equilibrium Transport in Quantum Materials, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3185036              
6Center for Computational Quantum Physics, The Flatiron Institute, ou_persistent22              
7Institute for Theoretical Physics, University of Erlangen-Nürnberg, ou_persistent22              
8Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3012828              

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 Abstract: We introduce the magnon circular photogalvanic effect enabled by stimulated 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 sizeable inverse spin Hall voltages in platinum contacts is proposed.

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Language(s): eng - English
 Dates: 2021-04-222021-04-22
 Publication Status: Published online
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: No review
 Identifiers: arXiv: 2104.10914
 Degree: -

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