• DocumentCode
    444268
  • Title

    Coupled charge-spin correlations in the pyrochlore Tl2Mn2O7 probed by ultrafast mid-infrared spectroscopy

  • Author

    Prasankumar, R.P. ; Taylor, A.J. ; Averitt, R.D. ; Okamura, H. ; Imai, H. ; Shimakawa, Y. ; Kubo, Y.

  • Author_Institution
    Condensed Matter & Thermal Phys., Los Alamos Nat. Lab., NM, USA
  • Volume
    2
  • fYear
    2005
  • fDate
    22-27 May 2005
  • Firstpage
    739
  • Abstract
    An optical-pump, mid-infrared (IR)-probe system is used to investigate ultrafast temperature-dependent dynamics in the magnetoresistive pyrochlore Tl2Mn2O7. We observe a prolonged carrier density increase, related to a scaling of the carrier lifetime with spin correlations.
  • Keywords
    carrier density; carrier lifetime; high-speed optical techniques; infrared spectroscopy; magnetoresistance; manganese compounds; optical pumping; thallium compounds; Tl2Mn2O7; carrier density; coupled charge-spin correlation; magnetoresistive pyrochlore; mid-infrared-probe system; optical-pump; pyrochlore Tl2Mn2O7 probe; ultrafast mid-infrared spectroscopy; ultrafast temperature-dependent dynamics; Charge carrier density; Colossal magnetoresistance; Magnetic materials; Nonlinear optics; Optical distortion; Optical pumping; Plasma temperature; Probes; Reflectivity; Ultrafast optics;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Quantum Electronics and Laser Science Conference, 2005. QELS '05
  • Print_ISBN
    1-55752-796-2
  • Type

    conf

  • DOI
    10.1109/QELS.2005.1548922
  • Filename
    1548922
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=444268