6×6 effective mass Hamiltonian for heterostructures grown on (11N)-oriented substrates

Woon-Ho Seo and John F. Donegan
Phys. Rev. B 68, 075318 – Published 27 August 2003
PDFExport Citation

Abstract

The 6×6 effective mass Hamiltonian for semiconductor heterostructures grown on (11N)-oriented substrates is derived and is compared with the 4×4 model. The hole subbands of InGaAs/InP single quantum wells grown on (11N)-oriented substrates with N= (that is, (001)], 0, 1 are calculated using the effective mass Hamiltonian as an example. The spin-orbit coupling affects the light-hole subband at k||=0, but it affects all subbands at finite k|| for all substrate orientations. In the 4×4 model (without spin-orbit coupling), the coupling between the heavy hole and the light hole is overestimated. At a critical uniaxial stress, the position of the first heavy hole and the first light hole as the highest energy level cross over. The separation between the first heavy hole and the first light hole is overestimated at the uniaxial stress below the critical value and is underestimated above the critical stress in the 4×4 model. The spin-orbit coupling greatly affects the valence band structures of the semiconductor heterostructures resulting in the modifications of the optical transitions anisotropy for structures grown on (11N)-oriented substrates.

  • Received 17 January 2003

DOI:https://doi.org/10.1103/PhysRevB.68.075318

©2003 American Physical Society

Authors & Affiliations

Woon-Ho Seo and John F. Donegan

  • Semiconductor Photonics Group, Department of Physics, Trinity College Dublin, Dublin2, Ireland

References (Subscription Required)

Click to Expand
Issue

Vol. 68, Iss. 7 — 15 August 2003

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×