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  Ultrafast optically induced ferromagnetic state in an elemental antiferromagnet

Golias, E., Kumberg, I., Gelen, I., Thakur, S., Goerdes, J., Hosseinifar, R., et al. (2021). Ultrafast optically induced ferromagnetic state in an elemental antiferromagnet. Physical Review Letters, 126(10): 107202. doi:10.1103/PhysRevLett.126.107202.

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PhysRevLett.126.107202.pdf (Publisher version), 832KB
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https://doi.org/10.1103/PhysRevLett.126.107202 (Publisher version)
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 Creators:
Golias, E.1, Author
Kumberg, I1, Author
Gelen, I1, Author
Thakur, S.1, Author
Goerdes, J.1, Author
Hosseinifar, R.1, Author
Guillet, Q.1, Author
Sharma, S.1, Author
Schuessler-Langeheine, C.1, Author
Pontius, N.1, Author
Kuch, W.1, Author
Dewhurst, John Kay2, Author              
Affiliations:
1external, ou_persistent22              
2Max Planck Institute of Microstructure Physics, Max Planck Society, ou_2415691              

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 Abstract: We present evidence for an ultrafast optically induced ferromagnetic alignment of antiferromagnetic Mn in Co/Mn multilayers. We observe the transient ferromagnetic signal at the arrival of the pump pulse at the Mn L3 resonance using x-ray magnetic circular dichroism in reflectivity. The timescale of the effect is comparable to the duration of the excitation and occurs before the magnetization in Co is quenched. Theoretical calculations point to the imbalanced population of Mn unoccupied states caused by the Co interface for the emergence of this transient ferromagnetic state.

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 Dates: 2021-03-102021-03-12
 Publication Status: Published in print
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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: 126 (10) Sequence Number: 107202 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1