PbTe/Pb/sub 1-x/Sn/sub x/Te (x

Author

Kriechbaum, Michael ; Kocevar, Peter ; Pascher, Harald ; Bauer, Günther

Author_Institution

Inst. fur Theor. Phys., Graz Univ., Austria

Volume

24

Issue

8

fYear

1988

Firstpage

1727

Lastpage

1743

Abstract

Theoretical and experimental investigations on a narrow-gap multiquantum well (MQW) system with a many-valley band structure: PbTe/PbSnTe are presented. This system has a number of interesting features, including weak confinement of electrons and strain splitting of equivalent L-states, comparable to the conduction-band discontinuities. The result of empirical tight-binding calculations, namely, a type I band alignment, is confirmed by magnetooptical investigations in both magnetic-field orientations parallel and perpendicular to the layers. An envelope function calculation including quantizing magnetic fields is used for the analysis.<>

Keywords

IV-VI semiconductors; band structure of crystalline semiconductors and insulators; conduction bands; lead compounds; magneto-optical effects; semiconductor quantum wells; tight-binding calculations; tin compounds; PbTe-PbSnTe; band structure; conduction-band discontinuities; electron weak confinement; empirical tight-binding calculations; envelope function calculation; equivalent L-states; four-wave mixing; magnetic-field orientations; magnetooptical investigations; many-valley band structure; narrow-gap multiquantum well; quantizing magnetic fields; strain splitting; type I band alignment; Body sensor networks; Brillouin scattering; Four-wave mixing; Magnetic field induced strain; Optical materials; Particle scattering; Quantum well devices; Semiconductor materials; Tellurium; Tin;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.7103

Filename

7103