Ultrafast Control of Magnetic Anisotropy by Resonant 4f Electronic and Phonon Excitations in Sm0.7Er0.3FeO3

Fitzky, Gabriel; Nakajima, Makoto; Koike, Yohei; Leitenstorfer, Alfred; Kurihara, Takayuki

Ultrafast Control of Magnetic Anisotropy by Resonant 4f Electronic and Phonon Excitations in Sm0.7Er0.3FeO3

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2021

Autor:innen

Fitzky, Gabriel

Nakajima, Makoto

Koike, Yohei

Leitenstorfer, Alfred

Kurihara, Takayuki

DOI (zitierfähiger Link)

https://doi.org/10.1109/IRMMW-THz50926.2021.9567030

Sammlungen

Physik

Publikationstyp

Beitrag zu einem Konferenzband

Publikationsstatus

Published

Erschienen in

46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz). Piscataway, NJ: IEEE, 2021. eISSN 2162-2035. ISBN 978-1-72819-424-0. Available under: doi: 10.1109/IRMMW-THz50926.2021.9567030

Zusammenfassung

We report on the ultrafast dynamics of spin reorientation using different excitation mechanisms in the orthoferrite Sm 0.7 Er 0.3 FeO 3 . First, intense few-cycle mid-infrared pulses tuned to optical phonon resonance are exploited to excite the lattice system. A finite time delay of the spin reorientation is observed at its initial dynamics, displaying the energy transfer between lattice and 4f system. In contrast, an instantaneous response is found when the f-f electronic transition of Sm 3+ is resonantly excited. Our results indicate that 4f electronic pumping can alter the magnetic anisotropy due to the modification of 4f-3d exchange at femtosecond time scales, without involving lattice thermalization.

Fachgebiet (DDC)

530 Physik

Konferenz

46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 29. Aug. 2021 - 3. Sept. 2021, Chengdu, China

Zitieren

ISO 690

FITZKY, Gabriel, Makoto NAKAJIMA, Yohei KOIKE, Alfred LEITENSTORFER, Takayuki KURIHARA, 2021. Ultrafast Control of Magnetic Anisotropy by Resonant 4f Electronic and Phonon Excitations in Sm0.7Er0.3FeO3. 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz). Chengdu, China, 29. Aug. 2021 - 3. Sept. 2021. In: 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz). Piscataway, NJ: IEEE, 2021. eISSN 2162-2035. ISBN 978-1-72819-424-0. Available under: doi: 10.1109/IRMMW-THz50926.2021.9567030

BibTex

@inproceedings{Fitzky2021Ultra-57643,
  year={2021},
  doi={10.1109/IRMMW-THz50926.2021.9567030},
  title={Ultrafast Control of Magnetic Anisotropy by Resonant 4f Electronic and Phonon Excitations in Sm0.7Er0.3FeO3},
  isbn={978-1-72819-424-0},
  publisher={IEEE},
  address={Piscataway, NJ},
  booktitle={46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)},
  author={Fitzky, Gabriel and Nakajima, Makoto and Koike, Yohei and Leitenstorfer, Alfred and Kurihara, Takayuki}
}

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Universitätsbibliographie

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