Title :
Spin Dynamics in n-doped CdTe quantum wells: Interplay of excitons, trions and two-dimensional electron gas
Author :
Chen, Z. ; Bratschitsch, R. ; Carter, S.G. ; Cundiff, S.T. ; Yakovlev, D.R. ; Karczewski, G. ; Wojtowicz, T. ; Kossut, J.
Author_Institution :
Nat. Inst. of Stand. & Technol., Univ. of Colorado, Boulder, CO
Abstract :
Spectral study of Kerr rotation is performed for quantum wells with different doping. Lightly doped sample shows excitonic enhancement of electron spin polarization. The presence of holes enhances electron spin relaxation in highly doped samples.
Keywords :
cadmium compounds; electron gas; semiconductor quantum wells; spin dynamics; trions; 2D electron gas; CdTe; Kerr rotation; electron spin polarization; excitons; n-doped; quantum wells; spin dynamics; trions; Absorption; Charge carrier processes; Doping; Electrons; Excitons; Magnetic field measurement; Optical pulses; Physics; Probes; Trions; (320.7130) Ultrafast processes in condensed matter, including semiconductors; (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.2006.4629112
