Imaging of acoustic phonon stop bands in superlattices

Journal Article · Mon Jun 08 04:00:00 EDT 1987 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.58.2446· OSTI ID:6543454

Hurley, D C; Tamura, S; Wolfe, J P; Morkoc, H

Phonon-imaging experiments reveal the angular distribution of high-frequency acoustic-phonon transmission through an In/sub 0.15/Ga/sub 0.85/As/AlAs superlattice. Phonon stop bands due to Bragg reflection at the folded-zone boundary are observed for both longitudinal and fast transverse phonons. A newly predicted intrazone stop band due to coupling between acoustic modes is detected.

• Research Organization: Department of Physics and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
• DOE Contract Number: AC02-76ER01198
• OSTI ID: 6543454
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 58:23; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ANGULAR DISTRIBUTION
ARSENIC COMPOUNDS
ARSENIDES
BRAGG REFLECTION
COUPLING
DATA
DISPERSION RELATIONS
DISTRIBUTION
EXPERIMENTAL DATA
FREQUENCY DEPENDENCE
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
IMAGES
INDIUM ARSENIDES
INDIUM COMPOUNDS
INFORMATION
NUMERICAL DATA
PHONONS
PNICTIDES
QUASI PARTICLES
REFLECTION
SUPERLATTICES