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Ultrafast spin polarization in a multiferroic manganite BiFe0.5Mn0.5O3 thin film

Journal Article


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Abstract


  • In this work, we present observations of ultrafast carrier dynamics and spin polarization

    in a multiferroic manganite BiFe0.5Mn0.5O3 film excited by linearly and circularly polarized

    femtosecond pulses, respectively. The d-band charge transfer transition is reasonably assigned to Γ3 → Γ5. The transient reflectivity decay on a time scale as fast as only 0.3 ps is consistent with the picture of ultrafast electron-phonon coupling. The ultrafast switching of polarization ellipticity (< 150 fs) originates from a transient coherent spin polarization by optical orientation. The ultrafast spin polarization switching is assigned to the Raman coherence process.

Authors


  •   Zhang, Zeyu (external author)
  •   Jin, Zuanming (external author)
  •   Lin, Xian (external author)
  •   Cheng, Zhenxiang
  •   Zhao, Hongyang (external author)
  •   Kimura, Hideo (external author)
  •   Ma, Guohong (external author)

Publication Date


  • 2015

Citation


  • Zhang, Z. Y., Jin, Z. M., Lin, X., Cheng, Z. X., Zhao, H. Y., Kimura, H. & Ma, G. H. (2015). Ultrafast spin polarization in a multiferroic manganite BiFe0.5Mn0.5O3 thin film. Europhysics Letters: a letters journal exploring the frontiers of physics, 112 (3), 37007-1-37007-5.

Scopus Eid


  • 2-s2.0-84948461424

Ro Full-text Url


  • http://ro.uow.edu.au/context/aiimpapers/article/2645/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1643

Start Page


  • 37007-1

End Page


  • 37007-5

Volume


  • 112

Issue


  • 3

Abstract


  • In this work, we present observations of ultrafast carrier dynamics and spin polarization

    in a multiferroic manganite BiFe0.5Mn0.5O3 film excited by linearly and circularly polarized

    femtosecond pulses, respectively. The d-band charge transfer transition is reasonably assigned to Γ3 → Γ5. The transient reflectivity decay on a time scale as fast as only 0.3 ps is consistent with the picture of ultrafast electron-phonon coupling. The ultrafast switching of polarization ellipticity (< 150 fs) originates from a transient coherent spin polarization by optical orientation. The ultrafast spin polarization switching is assigned to the Raman coherence process.

Authors


  •   Zhang, Zeyu (external author)
  •   Jin, Zuanming (external author)
  •   Lin, Xian (external author)
  •   Cheng, Zhenxiang
  •   Zhao, Hongyang (external author)
  •   Kimura, Hideo (external author)
  •   Ma, Guohong (external author)

Publication Date


  • 2015

Citation


  • Zhang, Z. Y., Jin, Z. M., Lin, X., Cheng, Z. X., Zhao, H. Y., Kimura, H. & Ma, G. H. (2015). Ultrafast spin polarization in a multiferroic manganite BiFe0.5Mn0.5O3 thin film. Europhysics Letters: a letters journal exploring the frontiers of physics, 112 (3), 37007-1-37007-5.

Scopus Eid


  • 2-s2.0-84948461424

Ro Full-text Url


  • http://ro.uow.edu.au/context/aiimpapers/article/2645/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1643

Start Page


  • 37007-1

End Page


  • 37007-5

Volume


  • 112

Issue


  • 3