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Journal Article

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

MPS-Authors

Viñas Boström,  Emil
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Parvini,  Tahereh S.
Viola-Kusminskiy Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Institute of Physics, University of Greifswald;

McIver,  James W.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Rubio,  Angel
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Computational Quantum Physics, The Flatiron Institute;

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Viola-Kusminskiy,  Silvia
Viola-Kusminskiy Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Institute for Theoretical Physics, University of Erlangen-Nürnberg;

Sentef,  Michael A.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Fulltext (public)

PhysRevB.104.L100404
(Publisher version), 54KB

Supplementary Material (public)
There is no public supplementary material available
Citation

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.


Cite as: http://hdl.handle.net/21.11116/0000-0009-2045-5
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.