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Photoinduced ultrafast optical anisotropy encountered by spin-flip transition in La0.67Ca0.33MnO3

Journal Article


Abstract


  • Understanding and controlling the transient optical anisotropy of strong correlation systems is of great interest in the quest for information processing and storage. Here, we report on ultrafast optical pump-probe measurements with linearly and circularly polarized laser pulses in the manganite La0.67Ca0.33MnO3 thin film. We show both the time-resolved reflectivity and the polarization state (Kerr rotation and ellipticity) of the probe-pulse at different temperatures, which are analyzed by the ultrafast intersite transition between Mn3+ and Mn4+ sites at photon energies around 1.55 eV. During the temperature-induced dynamical spectral weight transfer, a spin-flip photo-Transition between spin up eg states of Mn3+ and spin down eg states of Mn4+ ions occurs and is imprinted on the optical anisotropy of the probe beam.

UOW Authors


  •   Wang, Huizhen (external author)
  •   Jin, Zuanming (external author)
  •   Liu, Xiumei (external author)
  •   Zhang, Zeyu (external author)
  •   Lin, Xian (external author)
  •   Cheng, Zhenxiang
  •   Ma, Guohong (external author)

Publication Date


  • 2017

Citation


  • Wang, H., Jin, Z., Liu, X., Zhang, Z., Lin, X., Cheng, Z. & Ma, G. (2017). Photoinduced ultrafast optical anisotropy encountered by spin-flip transition in La0.67Ca0.33MnO3. Applied Physics Letters, 110 (25), 252407-1-252407-5.

Scopus Eid


  • 2-s2.0-85021090105

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2598

Start Page


  • 252407-1

End Page


  • 252407-5

Volume


  • 110

Issue


  • 25

Place Of Publication


  • United States

Abstract


  • Understanding and controlling the transient optical anisotropy of strong correlation systems is of great interest in the quest for information processing and storage. Here, we report on ultrafast optical pump-probe measurements with linearly and circularly polarized laser pulses in the manganite La0.67Ca0.33MnO3 thin film. We show both the time-resolved reflectivity and the polarization state (Kerr rotation and ellipticity) of the probe-pulse at different temperatures, which are analyzed by the ultrafast intersite transition between Mn3+ and Mn4+ sites at photon energies around 1.55 eV. During the temperature-induced dynamical spectral weight transfer, a spin-flip photo-Transition between spin up eg states of Mn3+ and spin down eg states of Mn4+ ions occurs and is imprinted on the optical anisotropy of the probe beam.

UOW Authors


  •   Wang, Huizhen (external author)
  •   Jin, Zuanming (external author)
  •   Liu, Xiumei (external author)
  •   Zhang, Zeyu (external author)
  •   Lin, Xian (external author)
  •   Cheng, Zhenxiang
  •   Ma, Guohong (external author)

Publication Date


  • 2017

Citation


  • Wang, H., Jin, Z., Liu, X., Zhang, Z., Lin, X., Cheng, Z. & Ma, G. (2017). Photoinduced ultrafast optical anisotropy encountered by spin-flip transition in La0.67Ca0.33MnO3. Applied Physics Letters, 110 (25), 252407-1-252407-5.

Scopus Eid


  • 2-s2.0-85021090105

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2598

Start Page


  • 252407-1

End Page


  • 252407-5

Volume


  • 110

Issue


  • 25

Place Of Publication


  • United States