Structural fluctuations and randomness in GaAsAlxGa1-xAs superlattices

Roy Clarke; T. Moustakas; K. Bajema; D. Grier; W. Dos Passos; R. Merlin

doi:10.1016/0749-6036(88)90184-X

Structural fluctuations and randomness in GaAsAl_xGa_1-xAs superlattices

Roy Clarke, T. Moustakas, K. Bajema, D. Grier, W. Dos Passos, R. Merlin

Research output: Contribution to journal › Article › peer-review

Abstract

We discuss the use of X-ray and Raman scattering to probe structural disorder in aperiodic GaAsAl_xGa_1-xAs superlattices, including random and quasiperiodic examples. Evidence is found for the presence of monolayer-thick steps at the interfaces. The X-ray data appear far more sensitive to this type of disorder than the acoustic phonon spectra obtained by Raman scattering.

Original language	English (US)
Pages (from-to)	371-374
Number of pages	4
Journal	Superlattices and Microstructures
Volume	4
Issue number	3
DOIs	https://doi.org/10.1016/0749-6036(88)90184-X
State	Published - 1988

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Electrical and Electronic Engineering

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@article{4c63b5e3337a4b4aac4c83255af8a0e7,

title = "Structural fluctuations and randomness in GaAsAlxGa1-xAs superlattices",

abstract = "We discuss the use of X-ray and Raman scattering to probe structural disorder in aperiodic GaAsAlxGa1-xAs superlattices, including random and quasiperiodic examples. Evidence is found for the presence of monolayer-thick steps at the interfaces. The X-ray data appear far more sensitive to this type of disorder than the acoustic phonon spectra obtained by Raman scattering.",

author = "Roy Clarke and T. Moustakas and K. Bajema and D. Grier and {Dos Passos}, W. and R. Merlin",

note = "Funding Information: Acknowledgements-The authors wish to thank M.H. Cohen and E. Economou for stimulating discussions on random systems. Work at the University of Michigan was supported in part by a grant from the National Science Foundation Materials Research Group program DMR-8602675, and the U.S. Army Research Office under Contracts No. DAAG29-85-K-0175 and No. DAAL-03-86-0020.",

year = "1988",

doi = "10.1016/0749-6036(88)90184-X",

language = "English (US)",

volume = "4",

pages = "371--374",

journal = "Superlattices and Microstructures",

issn = "0749-6036",

publisher = "Academic Press Inc.",

number = "3",

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TY - JOUR

T1 - Structural fluctuations and randomness in GaAsAlxGa1-xAs superlattices

AU - Clarke, Roy

AU - Moustakas, T.

AU - Bajema, K.

AU - Grier, D.

AU - Dos Passos, W.

AU - Merlin, R.

N1 - Funding Information: Acknowledgements-The authors wish to thank M.H. Cohen and E. Economou for stimulating discussions on random systems. Work at the University of Michigan was supported in part by a grant from the National Science Foundation Materials Research Group program DMR-8602675, and the U.S. Army Research Office under Contracts No. DAAG29-85-K-0175 and No. DAAL-03-86-0020.

PY - 1988

Y1 - 1988

N2 - We discuss the use of X-ray and Raman scattering to probe structural disorder in aperiodic GaAsAlxGa1-xAs superlattices, including random and quasiperiodic examples. Evidence is found for the presence of monolayer-thick steps at the interfaces. The X-ray data appear far more sensitive to this type of disorder than the acoustic phonon spectra obtained by Raman scattering.

AB - We discuss the use of X-ray and Raman scattering to probe structural disorder in aperiodic GaAsAlxGa1-xAs superlattices, including random and quasiperiodic examples. Evidence is found for the presence of monolayer-thick steps at the interfaces. The X-ray data appear far more sensitive to this type of disorder than the acoustic phonon spectra obtained by Raman scattering.

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DO - 10.1016/0749-6036(88)90184-X

M3 - Article

AN - SCOPUS:0024133635

SN - 0749-6036

VL - 4

SP - 371

EP - 374

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

IS - 3

ER -

Structural fluctuations and randomness in GaAsAl_xGa_1-xAs superlattices

Abstract

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