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  Deterministic control of an antiferromagnetic spin arrangement using ultrafast optical excitation

Windsor, Y. W., Ernst, A., Kummer, K., Kliemt, K., Schüßler-Langeheine, C., Pontius, N., et al. (2020). Deterministic control of an antiferromagnetic spin arrangement using ultrafast optical excitation. Communications Physics, 3: 139. doi:10.1038/s42005-020-00407-0.

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 Creators:
Windsor, Yoav William1, Author                 
Ernst, A.2, Author
Kummer, K.3, Author
Kliemt, K.4, Author
Schüßler-Langeheine, Ch.5, Author
Pontius, N.5, Author
Staub, U.6, Author
Chulkov, E. V.7, Author
Krellner, C.4, Author
Vyalikh, D. V.7, 8, Author
Rettig, Laurenz1, Author                 
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
2Institute for Theoretical Physics, Johannes Kepler University, Altenberger Strasse 69, 4040 Linz, Austria, ou_persistent22              
3ESRF – The European Synchrotron, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France, ou_persistent22              
4Physikalisches Institut, Johann Wolfgang Goethe-Universität, 60438 Frankfurt am Main, Germany, ou_persistent22              
5Institut für Methoden und Instrumentierung der Forschung mit Synchrotronstrahlung, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany, ou_persistent22              
6Swiss Light Source, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland, ou_persistent22              
7Donostia International Physics Center (DIPC), 20018 Donostia/San Sebastián, Basque Country, Spain, ou_persistent22              
8IKERBASQUE, Basque Foundation for Science, 48013, Bilbao, Spain, ou_persistent22              

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Free keywords: Condensed Matter, Strongly Correlated Electrons, cond-mat.str-el, Condensed Matter, Materials Science, cond-mat.mtrl-sci
 Abstract: A central prospect of antiferromagnetic spintronics is to exploit magnetic properties that are unavailable with ferromagnets. However, this poses the challenge of accessing such properties for readout and control. To this end, light-induced manipulation of the transient ground state, e.g. by changing the magnetic anisotropy potential, opens promising pathways towards ultrafast deterministic control of antiferromagnetism. Here, we use this approach to trigger a coherent rotation of the entire long-range antiferromagnetic spin arrangement about a crystalline axis in GdRh2Si2 and demonstrate deterministic control of this rotation upon ultrafast optical excitation. Our observations can be explained by a displacive excitation of the Gd spins' local anisotropy potential by the optical excitation, allowing for
a full description of this transient magnetic anisotropy potential.

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Language(s): eng - English
 Dates: 2020-02-042020-03-142020-07-152020-08-142020-08
 Publication Status: Issued
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Communications Physics
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: 8 Volume / Issue: 3 Sequence Number: 139 Start / End Page: - Identifier: ISSN: 2399-3650
CoNE: https://pure.mpg.de/cone/journals/resource/2399-3650