Carrier density saturation in a Ga0.25In0.75As/InP heterostructure
Författare
Summary, in English
We observe a strong saturation of the carrier density in the quantum well of a Ga0.25In0.75As/InP MISFET at positive gate voltages. Using a self-consistent Schrodinger/Poisson solver, we model the band structure and find that the saturation is caused by the population of charge states between the gate and the quantum well. We discuss the impact of these charge states on the transport properties, and present a fabrication method that avoids parallel conduction in this heterostructure. (C) 2007 Elsevier B.V. All rights reserved.
Avdelning/ar
Publiceringsår
2008
Språk
Engelska
Sidor
1754-1756
Publikation/Tidskrift/Serie
Physica E: Low-Dimensional Systems and Nanostructures
Volym
40
Issue
5
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Condensed Matter Physics
Nyckelord
- saturation
- carrier density
- GaInAs
- InP
- band structure
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1386-9477