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  An effective magnetic field from optically driven phonons

Nova, T. F., Cartella, A., Cantaluppi, A., Först, M., Bossini, D., Mikhaylovskiy, R. V., et al. (2017). An effective magnetic field from optically driven phonons. Nature Physics, 13(2), 132-136. doi:10.1038/nphys3925.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-3AF2-A Version Permalink: http://hdl.handle.net/21.11116/0000-0002-6942-E
Genre: Journal Article

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 Creators:
Nova, Tobia F.1, 2, Author              
Cartella, Andrea1, Author              
Cantaluppi, Alice1, Author              
Först, Michael1, Author              
Bossini, D.3, 4, Author
Mikhaylovskiy, R. V.3, Author
Kimel, A. V.3, Author
Merlin, R.5, Author
Cavalleri, Andrea1, 6, Author              
Affiliations:
1Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
2International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266714              
3Radboud University, Institute for Molecules and Materials, 6525 AJ Nijmegen, The Netherlands, ou_persistent22              
4The University of Tokyo, Institute for Photon Science and Technology, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, ou_persistent22              
5Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA, ou_persistent22              
6University of Oxford, Clarendon Laboratory, Oxford OX1 3PU, UK, ou_persistent22              

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Free keywords: Condensed Matter; Materials Science; Magnetic properties and materials; Magneto-optics; Terahertz optics
 Abstract: Light fields at terahertz and mid-infrared frequencies allow for the direct excitation of collective modes in condensed matter, which can be driven to large amplitudes. For example, excitation of the crystal lattice has been shown to stimulate insulator–metal transitions, melt magnetic order or enhance superconductivity. Here, we generalize these ideas and explore the simultaneous excitation of more than one lattice mode, which are driven with controlled relative phases. This nonlinear mode mixing drives rotations as well as displacements of the crystal-field atoms, mimicking the application of a magnetic field and resulting in the excitation of spin precession in the rare-earth orthoferrite ErFeO3. Coherent control of lattice rotations may become applicable to other interesting problems in materials research—for example, as a way to affect the topology of electronic phases.

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Language(s): eng - English
 Dates: 2015-12-202016-07-222016-09-162016-10-242017-02-06
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: arXiv: 1512.06351
DOI: 10.1038/nphys3925
 Degree: -

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Title: Nature Physics
  Other : Nat. Phys.
Source Genre: Journal
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Publ. Info: London : Nature Pub. Group
Pages: - Volume / Issue: 13 (2) Sequence Number: - Start / End Page: 132 - 136 Identifier: ISSN: 1745-2473
CoNE: /journals/resource/1000000000025850