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  Terahertz-Driven Nonlinear Spin Response of Antiferromagnetic Nickel Oxide

Baierl, S., Mentink, J. H., Hohenleutner, M., Braun, L., Do, T.-M., Lange, C., et al. (2016). Terahertz-Driven Nonlinear Spin Response of Antiferromagnetic Nickel Oxide. Physical Review Letters, 117(19): 197201. doi:10.1103/PhysRevLett.117.197201.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002C-1B3D-9 Version Permalink: https://hdl.handle.net/21.11116/0000-0003-F0ED-3
Genre: Journal Article

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PhysRevLett.117.197201.pdf (Publisher version), 943KB
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 Creators:
Baierl, S.1, Author
Mentink, J. H.2, Author
Hohenleutner, M.1, Author
Braun, Lukas3, Author           
Do, T.-M.1, Author
Lange, C.1, Author
Sell, A.4, Author
Fiebig, M.5, Author
Woltersdorf, G.6, Author
Kampfrath, Tobias3, Author           
Huber, R.1, Author
Affiliations:
1Department of Physics, University of Regensburg, 93053 Regensburg, Germany, ou_persistent22              
2Radboud University, Institute of Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, Netherlands, ou_persistent22              
3Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
4Department of Physics, University of Konstanz and TOPTICA Photonics AG, Lochhamer Schlag 19, 82166 Gräfelfing, Germany, ou_persistent22              
5Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland, ou_persistent22              
6Institute of Physics, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany, ou_persistent22              

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 Abstract: Terahertz magnetic fields with amplitudes of up to 0.4 Tesla drive magnon resonances in nickel oxide while the induced dynamics is recorded by femtosecond magneto-optical probing. We observe distinct spin-mediated optical nonlinearities, including oscillations at the second harmonic of the 1 THz magnon mode. The latter originate from coherent dynamics of the longitudinal component of the antiferromagnetic order parameter, which are probed by magneto-optical effects of second order in the spin deflection. These observations allow us to dynamically disentangle electronic from lattice-related contributions to magnetic linear birefringence and dichroism—information so far only accessible by ultrafast THz spin control. The nonlinearities discussed here foreshadow physics that will become essential in future subcycle spin switching.

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 Dates: 2015-09-252016-04-262016-11-01
 Publication Status: Published online
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.117.197201
 Degree: -

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Project name : TERAMAG - Ultrafast spin transport and magnetic order controlled by terahertz electromagnetic pulses
Grant ID : 681917
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: 6 Volume / Issue: 117 (19) Sequence Number: 197201 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1