Published January 22, 2003
| Version v1
Journal article
Influence of illumination on the quantum mobility of a two-dimensional electron gas in Si δ-doped GaAs/In0.15Ga0.85As quantum wells
Creators
- 1. Departamento de Ciencias Fisicas da Universidade Federal de Uberlandia, CP 595, 38400-902 Uberlandia, MG (Brazil)
- 2. Instituto de Fisica da Universidade de Sao Paulo, Laboratorio de Novos Materiais Semicondutores, CP 66318, 05315-970 Sao Paulo, SP (Brazil)
- 3. Instituto de Fisica Gleb Wataghin, Universidade Estadual de Campinas, CP 6165, 17083-970 Campinas, SP (Brazil)
Description
A series of GaAs/InGaAs quantum wells with a silicon δ-doped layer in the top barrier was investigated by Shubnikov-de Haas measurements as a function of the illumination time of the samples. During the illumination process strong modifications of the electronic density and the quantum mobility of each occupied subband were observed. Based on self-consistent calculations, the dominant mechanism which caused the changes in the subband quantum mobilities with illumination was elucidated
Availability note (English)
Available online at http://stacks.iop.org/0953-8984/15/121/c30212.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0953-8984/15/121/c30212.pdf; http://www.iop.org/;
- PII
- S0953-8984(03)39522-0;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 15
- Journal Issue
- 2
- Journal Page Range
- p. 121-132
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 34023107
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ELECTRON DENSITY; ELECTRONIC STRUCTURE; GALLIUM ARSENIDES; ILLUMINANCE; INDIUM ARSENIDES; MOBILITY; SEMICONDUCTOR JUNCTIONS; SHUBNIKOV-DE HAAS EFFECT
- Descriptors DEC
- ARSENIC COMPOUNDS; ARSENIDES; GALLIUM COMPOUNDS; INDIUM COMPOUNDS; PNICTIDES