Title :
Sub-picosecond quasiparticle dynamics of manganites at 1.5 eV
Author :
Lee, H.J. ; Averitt, R.D. ; Demsar, J. ; Funk, D.J. ; Taylor, A.J. ; Hur, N.H. ; Moritomo, Y.
Author_Institution :
Los Alamos Nat. Lab., Los Alamos, NM
Abstract :
Sub-picosecond quasiparticle dynamics of the layered manganite La1.4Sr1.6Mn2O7 and the perovskite manganite La0.7Ca0.3MnO3 are investigated, indicating relaxation proceses corresponding to the redressing time of a photoexcited electron to its polaronic ground state.
Keywords :
high-speed optical techniques; lanthanum compounds; manganese compounds; quasiparticles; La0.7Ca0.3MnO3; La1.4Sr1.6Mn2O7; electron volt energy 1.5 eV; perovskite manganite; polaronic ground state; redressing time; relaxation proceses; sub picosecond quasiparticle dynamics; Colossal magnetoresistance; Electron optics; Magnetic materials; Optical materials; Optical pumping; Paramagnetic materials; Physics; Semiconductor materials; Temperature; Ultrafast optics; (320.7100) Ultrafast measurements; (320.7150) Ultrafast spectroscopy;
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4627787
