Polaron effect in single semiconductor heterostructures
β Scribed by F. Comas; M.E. Mora-Ramos
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 510 KB
- Volume
- 159
- Category
- Article
- ISSN
- 0921-4526
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π SIMILAR VOLUMES
By using a modified Lee-Low-Pines variational method, we have investigated the groundstate binding energy of a polaron confined in asymmetric single and step quantum wells (QWs) due to interface phonons, confined bulk-like LO phonons, and half-space LO phonons. The relative importance of the differe
In heterostructures made of dielectric or semiconductor materials a reduction in symmetry can lead to a pyroelectric effect in the heterostructure, even though the effect is forbidden by symmetry in the bulk-crystal constituent materials. The pyroelectric effect resulting from an applied Γ©ectric fie
Polaronic corrections are calculated for a semiconductor quantum-well heterostructure at T = 0 K. Electron coupling with confined LO-phonons is assumed on the basis of an electron-LO-phonon model Hamiltonian deduced in a previous work. Screening is ignored during the calculations, a parabolic band s