Hybridization of a two-dimensional electron-hole system in InAs/GaSb quantum wells

Authors
Lo, I Tsay, SF Chiang, JC Chang, YC Tu, LW Mitchel, WC
Citation
I. Lo et al., Hybridization of a two-dimensional electron-hole system in InAs/GaSb quantum wells, CHIN J PHYS, 39(5), 2001, pp. L387-L392
Citations number
21
Categorie Soggetti
Physics
Journal title
CHINESE JOURNAL OF PHYSICS
ISSN journal
05779073 → ACNP
Volume
39
Issue
5
Year of publication
2001
Pages
L387 - L392
Database
ISI
SICI code
0577-9073(200110)39:5<L387:HOATES>2.0.ZU;2-D
Abstract
We have performed Shubnikov-de Haas (SdH) measurements on Type II InAs/GaSb quantum wells with different InAs layer thickness. A "blue shift" in the S dH frequency due to the suppression of the hybridized 2D electron-hole wave functions was observed. The "blue shift" is a direct evidence for the mixi ng of the InAs conduction band and the GaSb valence band. The results sugge st that the e-X line observed in the far-infrared cyclotron-resonance spect rum originates from the conduction-valence Landau level the mixing effect.