Laser-frequency dependence of raman modes in GaAs-AlAs superlattices

G. S. Spencer; J. Menéndez; L. N. Pfeiffer; K. W. West

doi:10.1016/0038-1098(95)00595-1

Laser-frequency dependence of raman modes in GaAs-AlAs superlattices

G. S. Spencer, J. Menéndez, L. N. Pfeiffer, K. W. West

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

1 Scopus citations

Abstract

The excitation frequency dependence of the Raman spectra in short-period GaAs-AlAs superlattices is studied. The off-resonance Raman spectra can be explained by a disorder-induced breakdown of wave-vector conservation leading to the contribution of small magnitude, random orientation wave-vector phonons. As extreme resonance is approached, double-resonance effects cause phonons with large magnitude, preferentially in-plane wavevectors to dominate the Raman spectrum.

Original language	English (US)
Pages (from-to)	21-25
Number of pages	5
Journal	Solid State Communications
Volume	97
Issue number	1
DOIs	https://doi.org/10.1016/0038-1098(95)00595-1
State	Published - Jan 1996
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
Materials Chemistry

Keywords

A. Semiconductors
D. Optical properties
D. Phonons
E. Ineleastic light scattering

Access to Document

10.1016/0038-1098(95)00595-1

Cite this

@article{93f6b640fa5d43c1ae4d517c9bdb356b,

title = "Laser-frequency dependence of raman modes in GaAs-AlAs superlattices",

abstract = "The excitation frequency dependence of the Raman spectra in short-period GaAs-AlAs superlattices is studied. The off-resonance Raman spectra can be explained by a disorder-induced breakdown of wave-vector conservation leading to the contribution of small magnitude, random orientation wave-vector phonons. As extreme resonance is approached, double-resonance effects cause phonons with large magnitude, preferentially in-plane wavevectors to dominate the Raman spectrum.",

keywords = "A. Semiconductors, D. Optical properties, D. Phonons, E. Ineleastic light scattering",

author = "Spencer, \{G. S.\} and J. Men{\'e}ndez and Pfeiffer, \{L. N.\} and West, \{K. W.\}",

year = "1996",

month = jan,

doi = "10.1016/0038-1098(95)00595-1",

language = "English (US)",

volume = "97",

pages = "21--25",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd",

number = "1",

}

TY - JOUR

T1 - Laser-frequency dependence of raman modes in GaAs-AlAs superlattices

AU - Spencer, G. S.

AU - Menéndez, J.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 1996/1

Y1 - 1996/1

N2 - The excitation frequency dependence of the Raman spectra in short-period GaAs-AlAs superlattices is studied. The off-resonance Raman spectra can be explained by a disorder-induced breakdown of wave-vector conservation leading to the contribution of small magnitude, random orientation wave-vector phonons. As extreme resonance is approached, double-resonance effects cause phonons with large magnitude, preferentially in-plane wavevectors to dominate the Raman spectrum.

AB - The excitation frequency dependence of the Raman spectra in short-period GaAs-AlAs superlattices is studied. The off-resonance Raman spectra can be explained by a disorder-induced breakdown of wave-vector conservation leading to the contribution of small magnitude, random orientation wave-vector phonons. As extreme resonance is approached, double-resonance effects cause phonons with large magnitude, preferentially in-plane wavevectors to dominate the Raman spectrum.

KW - A. Semiconductors

KW - D. Optical properties

KW - D. Phonons

KW - E. Ineleastic light scattering

UR - https://www.scopus.com/pages/publications/0029732289

UR - https://www.scopus.com/inward/citedby.url?scp=0029732289&partnerID=8YFLogxK

U2 - 10.1016/0038-1098(95)00595-1

DO - 10.1016/0038-1098(95)00595-1

M3 - Article

AN - SCOPUS:0029732289

SN - 0038-1098

VL - 97

SP - 21

EP - 25

JO - Solid State Communications

JF - Solid State Communications

IS - 1

ER -

Laser-frequency dependence of raman modes in GaAs-AlAs superlattices

Abstract

All Science Journal Classification (ASJC) codes

Keywords

Access to Document

Other files and links

Fingerprint

Cite this