Title :
Ultrafast photoinduced ferromagnetism in GaMnAs
Author :
Wang, J. ; Cotoros, I. ; Dani, K.M. ; Chemla, D.S. ; Liu, X. ; Furdyna, J.K.
Author_Institution :
Materials Sciences Division, Lawrence Berkeley National Laboratory Department of Physics, University of California at Berkeley, 94720 USA
Abstract :
We report on ultrafast photoenhanced ferromagnetism and para- to ferromagnetic phase transition, on a 100-ps time scale, due to a transient enhancement of Curie temperature Tc via the population of photoexcited carriers in III-Mn-V semiconductor GaMnAs.
Keywords :
Delay effects; Demagnetization; Integrated optics; Laboratories; Lattices; Magnetic materials; Magnetization; Paramagnetic materials; Physics; Temperature dependence;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431554
