Abstract
Pseudomorphic crescent-shaped quantum wires are shown to exhibit size-dependent symmetry breaking due to an anisotropic strain distribution. We predict level degeneracies and an increased carrier lifetime. As a model system As/As quantum wires are simulated with finite-element analysis to obtain the strain tensor. Within the confinement potentials, which are strongly modified by the strain-induced potentials and the piezoelectric field, the single-particle Schrödinger equation is solved for electrons and holes.
- Received 20 June 1994
DOI:https://doi.org/10.1103/PhysRevB.50.14187
©1994 American Physical Society