Three-Dimensional Confinement in the Conduction Band Structure of InP
Journal Article
·
· Physical Review Letters
Strong quantum confinement in InP is observed to significantly reduce the separation between the direct and indirect conduction band states. The effects of three-dimensional confinement are investigated by tailoring the initial separation between conduction band states using quantum dots (QDs) of different sizes and hydrostatic pressure. Analyses of the QD emission spectra show that the X{sub 1c} states are lowest in energy at pressures of {approx}6 GPa , much lower than in the bulk. The transition to the X{sub 1c} states can be explained by either a sequence of {gamma}-L and L-X crossings, or by the crossover between strongly coupled {gamma} and X states. (c) 2000 The American Physical Society.
- OSTI ID:
- 20216334
- Journal Information:
- Physical Review Letters, Vol. 84, Issue 18; Other Information: PBD: 1 May 2000; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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