Published November 2002
| Version v1
Journal article
Effect of two-dimensional charge carriers screening on the binding energy of the exciton states in the GaAs/AlGaAs quantum wells
- 1. Inst. Fiziki Tverdogo Tela RAN, Chernogolovka, Moskovskaya Oblast' (Russian Federation)
Description
The spectrum of the excitons excited states in the GaAs/AlGaAs quantum wells of various widths and its change due to screening the electron-hole interaction by the two-dimensional electrons is studied. Sharp decrease in the excitons binding energy by increase in the two-dimensional electrons concentration is identified and the temperature dependence of the screening parameters of the excitons basic and excited states up to the extra low temperatures T = 50 mK is studied
Abstract (Russian)
Исследован спектр возбужденных состояний экситонов в квантовых ямах GaAs/AIGaAs различной ширины и его изменение из-за экранирования электронно-дырочного взаимодействия двумерными электронами. Обнаружено резкое уменьшение энергии связи экситонов при увеличении концентрации двумерных электронов и изучена температурная зависимость параметров экранирования основного и возбужденного состояний экситонов вплоть до сверхнизких температур T = 50 мКAdditional details
Additional titles
- Original title (Russian)
- Влияние экранирования двумерными носителями заряда на энергию связи экситонных состояний в GaAs/AlGaAs квантовых ямах
Publishing Information
- Journal Title
- Pis'ma v Zhurnal Ehksperimental'noj i Teoreticheskoj Fiziki
- Journal Volume
- 76
- Journal Issue
- 9-10
- Journal Page Range
- p. 673-677
- ISSN
- 0370-274X
- CODEN
- PZETAB
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 35010340
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ALUMINIUM ARSENIDES; BINDING ENERGY; BOUND STATE; CHARGE CARRIERS; ELECTRON DENSITY; ELECTRONS; EMISSION SPECTRA; ENERGY GAP; EXCITED STATES; EXCITONS; GALLIUM ARSENIDES; GROUND STATES; HOLES; QUANTUM ELECTRONICS
- Descriptors DEC
- ALUMINIUM COMPOUNDS; ARSENIC COMPOUNDS; ARSENIDES; ELEMENTARY PARTICLES; ENERGY; ENERGY LEVELS; FERMIONS; GALLIUM COMPOUNDS; LEPTONS; PNICTIDES; QUASI PARTICLES; SPECTRA
Optional Information
- Notes
- 8 refs., 4 figs.