• DocumentCode
    3810745
  • Title

    Laser-Induced Precession of Magnetization in GaMnAs

  • Author

    Eva Rozkotova;Petr Nemec;Daniel Sprinzl;Petra Horodyska;Frantisek Trojanek;Petr Maly;Vit Novak;Kamil Olejnik;Miroslav Cukr;Tomas Jungwirth

  • Author_Institution
    Fac. of Math. & Phys., Charles Univ. in Prague, Prague
  • Volume
    44
  • Issue
    11
  • fYear
    2008
  • Firstpage
    2674
  • Lastpage
    2677
  • Abstract
    We report on the photo-induced precession of the ferromagnetically coupled Mn spins in (Ga,Mn)As, which is observed even with no external magnetic field applied. We concentrate on various experimental aspects of the time-resolved magneto-optical Kerr effect (TR-MOKE) technique that can be used to clarify the origin of the detected signals. We show that the measured data typically consist of several different contributions, among which only the oscillatory signal is directly connected with the ferromagnetic order in the sample.
  • Keywords
    "Magnetization","Magnetic materials","Probes","Optical pumping","Optical pulses","Pump lasers","Magnetooptic effects","Kerr effect","Signal detection","Optical materials"
  • Journal_Title
    IEEE Transactions on Magnetics
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2008.2003061
  • Filename
    4717639
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3810745