Raman probe of classical magnetoresistance in doped GaAs/AlAs superlattices

Raman probe of classical magnetoresistance in doped GaAs/AlAs superlattices

The characteristical asymmetric shapes of the Raman lines caused by the collective plasmon–LO phonon excitations in heavily doped GaAs/AlAs superlattices were analyzed in order to separate the influence of the magnetic field on the spatial extent of the collective excitations and on their damping co...

Full description

Saved in:
Bibliographic Details
Published in:Physica. B, Condensed matter Vol. 298; no. 1-4; pp. 324 - 328
Main Authors: Pusep, Yu.A, Liang, Jun-Jih, Geurts, J, Moshegov, N.N
Format: Journal Article Conference Proceeding
Language:English
Published: Amsterdam Elsevier B.V 01-04-2001
Elsevier
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic transport in mesoscopic or nanoscale materials and structures
Electronic transport in multilayers, nanoscale materials and structures
Exact sciences and technology
Magnetic fields
Physics
Raman scattering
Semiconductors
Superlattices
Semiconductors
Magnetic fields
Raman scattering
Superlattices
Aluminium arsenides
Damping
Gallium arsenides
Inorganic compounds
Electrical conductivity
Line shape
Semiconductor materials
Magnetic field effects
Doped materials
Binary compounds
Plasmons
Excitation spectrum
Magnetoresistance
Collective excitations
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The characteristical asymmetric shapes of the Raman lines caused by the collective plasmon–LO phonon excitations in heavily doped GaAs/AlAs superlattices were analyzed in order to separate the influence of the magnetic field on the spatial extent of the collective excitations and on their damping constant, which is attributed to the AC conductivity. It was shown that the magnetic field influences the damping of the plasmon-like excitations stronger than their spatial extent.
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(01)00328-3