• DocumentCode
    2319776
  • Title

    IR pump-probe study of multiferroic LuMnO3

  • Author

    Jang, K.-J. ; Lim, J. ; Ahn, J. ; Kim, J. ; Yee, K.J. ; Ahn, J.S. ; Cheong, S.-W.

  • Author_Institution
    KAIST, Daejeon, South Korea
  • fYear
    2009
  • fDate
    21-25 Sept. 2009
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    We observe coherent phonons of 3.6 THz and 47 GHz oscillation frequencies of multiferroic LuMnO3 using femtosecond IR spectroscopy. Both coherent phonons disappear below TN as antiferromagnetically aligned spins strongly coupled with lattice vibration. This disappearance of phonons is related with the dynamic spin-phonon coupling and the giant magneto-elastic coupling near TN.
  • Keywords
    high-speed optical techniques; infrared spectra; lutetium compounds; magnetoelastic effects; multiferroics; spin-phonon interactions; IR pump-probe study; LuMnO3; coherent phonons; dynamic spin-phonon coupling; femtosecond IR spectroscopy; frequency 3.6 THz; frequency 47 THz; giant magneto-elastic coupling; lattice vibration; multiferroic materials; Antiferromagnetic materials; Ferroelectric materials; Frequency; Magnetic materials; Optical pulses; Optical pumping; Optical scattering; Phonons; Probes; Ultrafast optics;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
  • Conference_Location
    Busan
  • Print_ISBN
    978-1-4244-5416-7
  • Electronic_ISBN
    978-1-4244-5417-4
  • Type

    conf

  • DOI
    10.1109/ICIMW.2009.5324931
  • Filename
    5324931
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2319776