Magneto-Excitons in (411)A and (100)-Oriented GaAs/AlGaAs Multiple Quantum Well Structures
Conference
·
OSTI ID:3233
We report magneto-exciton spectroscopy studies of (411)A and (100)-oriented GaAs/Al{sub 0.3}Ga{sub 0.7}As multiquantum well structures. The samples consisted of seven GaAs quantum wells with widths varying between 0.6 and 12nm, were grown on (411)A and (100)-oriented GaAs substrates. The exciton diamagnetic energy shifts and linewidths were measured between 0 and 14T at 1.4K The dependence of the exciton diamagnetic shifts with magnetic field were calculated using a variational approach and good agreement with experiment for both substrate orientations was found.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 3233
- Report Number(s):
- SAND98-1481C; TRN: AH200112%%297
- Resource Relation:
- Conference: SPIE International Symposium on Optoelectronics '99 - Physics and Simulation of Optoelectronic Devices VII, San Jose, CA (US), 01/23/1999--01/29/1999; Other Information: PBD: 20 Jan 1999
- Country of Publication:
- United States
- Language:
- English
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