Lattice dynamics of GaN/AlN superlattices
Abstract
Phonon dispersion curves of cubic (001)-(GaN){sub n}/(AlN){sub n} (n=1{endash}4) superlattices for various propagating directions are calculated. Short-range interactions up to the second-nearest neighbors are described by using a two-parameter Keating model, and the long-range Coulomb interactions are included via an Ewald summation. Raman spectra are calculated by a bond-polarizability model. The confinement of optical modes is discussed. The anisotropies of the zone-center optical phonons are investigated. {copyright} {ital 1997 American Institute of Physics.}
- Authors:
-
- Surface Physics Laboratory
- CCAST (World Laboratory), P.O. Box 8730, Beijing 100080 (Peoples Repubic of China)
- Publication Date:
- OSTI Identifier:
- 565506
- Resource Type:
- Journal Article
- Journal Name:
- Journal of Applied Physics
- Additional Journal Information:
- Journal Volume: 82; Journal Issue: 2; Other Information: PBD: Jul 1997
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 66 PHYSICS; GALLIUM NITRIDES; SUPERLATTICES; ALUMINIUM NITRIDES; GALLIUM COMPOUNDS; ALUMINIUM COMPOUNDS; LATTICE VIBRATIONS; PHONONS; DISPERSION RELATIONS; RAMAN SPECTRA; POLARIZABILITY
Citation Formats
Wei, G, Zi, J, Fudan-T. D. Lee Physics Laboratory, Fudan University, Shanghai 200433, Zhang, K, Xie, X, and Surface Physics Laboratory, Fudan University, Shanghai 200433. Lattice dynamics of GaN/AlN superlattices. United States: N. p., 1997.
Web. doi:10.1063/1.366554.
Wei, G, Zi, J, Fudan-T. D. Lee Physics Laboratory, Fudan University, Shanghai 200433, Zhang, K, Xie, X, & Surface Physics Laboratory, Fudan University, Shanghai 200433. Lattice dynamics of GaN/AlN superlattices. United States. https://doi.org/10.1063/1.366554
Wei, G, Zi, J, Fudan-T. D. Lee Physics Laboratory, Fudan University, Shanghai 200433, Zhang, K, Xie, X, and Surface Physics Laboratory, Fudan University, Shanghai 200433. 1997.
"Lattice dynamics of GaN/AlN superlattices". United States. https://doi.org/10.1063/1.366554.
@article{osti_565506,
title = {Lattice dynamics of GaN/AlN superlattices},
author = {Wei, G and Zi, J and Fudan-T. D. Lee Physics Laboratory, Fudan University, Shanghai 200433 and Zhang, K and Xie, X and Surface Physics Laboratory, Fudan University, Shanghai 200433},
abstractNote = {Phonon dispersion curves of cubic (001)-(GaN){sub n}/(AlN){sub n} (n=1{endash}4) superlattices for various propagating directions are calculated. Short-range interactions up to the second-nearest neighbors are described by using a two-parameter Keating model, and the long-range Coulomb interactions are included via an Ewald summation. Raman spectra are calculated by a bond-polarizability model. The confinement of optical modes is discussed. The anisotropies of the zone-center optical phonons are investigated. {copyright} {ital 1997 American Institute of Physics.}},
doi = {10.1063/1.366554},
url = {https://www.osti.gov/biblio/565506},
journal = {Journal of Applied Physics},
number = 2,
volume = 82,
place = {United States},
year = {Tue Jul 01 00:00:00 EDT 1997},
month = {Tue Jul 01 00:00:00 EDT 1997}
}
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