Exchange effects in electron-hole plasma in quantum well heterostructures under an electric field

I. A. Fyodorov; V. N. Sokolov

doi:10.1117/12.368391

4 November 1999 Exchange effects in electron-hole plasma in quantum well heterostructures under an electric field

I. A. Fyodorov, V. N. Sokolov

Proceedings Volume 3890, Fourth International Conference on Material Science and Material Properties for Infrared Optoelectronics; (1999) https://doi.org/10.1117/12.368391
Event: Material Science and Material Properties for Infrared Optoelectronics, 1998, Kiev, Ukraine

Abstract

Numerical calculations are presented for the electron-hole plasma density dependence of the ground-state subband energies and carrier's wave functions in GaAs/Al_xGa_1-xAs quantum-well heterostructure subjected an electric field. We show that both the Hartree and exchange interactions cause the electron and hole self-energies to highly depend on the plasma density. In contrast, only a weak dependence of the spatial extent of the wave functions, due to exchange interactions, on the plasma density has been found.Our calculations also reveal a strong competition between the exchange and Hartree interactions as a function of plasma density, that in general, depends on the electric field and quantum-well width. The results of numerical calculations of the band-gap renormalization due to many- body effects are used to infer the bistable behavior of the quantum-well heterostructures in an electric field under near band-gap photoexcitation.

Citation Download Citation

I. A. Fyodorov and V. N. Sokolov "Exchange effects in electron-hole plasma in quantum well heterostructures under an electric field", Proc. SPIE 3890, Fourth International Conference on Material Science and Material Properties for Infrared Optoelectronics, (4 November 1999); https://doi.org/10.1117/12.368391

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available