Magnetic-field-dependent multi-line cyclotron resonance in modulation-doped GaAs/AlGaAs quantum wells

S. R. Ryu; Z. X. Jiang; T. M. Yeo; B. D. McCombe; Y. J. Wang; W. Schaff

doi:10.1016/S0921-4526(98)00353-6

Magnetic-field-dependent multi-line cyclotron resonance in modulation-doped GaAs/AlGaAs quantum wells

S. R. Ryu
, Z. X. Jiang
, T. M. Yeo
, B. D. McCombe
, Y. J. Wang
, W. Schaff

Physics

SUNY Buffalo
Kumoh National Institute of Technology
National High Magnetic Field Laboratory

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

2 Scopus citations

Abstract

Far-infrared magneto-transmission, magneto-transport and magneto-photoluminescence (PL) measurements have been carried out at low temperatures and high magnetic fields on a high electron density modulation-doped GaAs/AlGaAs multiple-quantum-well sample. Two and three electron cyclotron resonance (CR) lines were clearly resolved in the magnetic field ranges 6.5-8.5 T and 13-15 T, respectively. The main features of this multi-line structure and its evolution with magnetic field can be qualitatively understood from a model that accounts for self-consistent band bending (at B = 0), occupancy of Landau levels (LLs) in two subbands, and conduction-band non-parabolicity. Quantitative agreement will require incorporation of self-consistency in the presence of the magnetic field and electron-electron interactions.

Original language	English
Pages (from-to)	955-960
Number of pages	6
Journal	Physica B: Condensed Matter
Volume	249-251
DOIs	https://doi.org/10.1016/S0921-4526(98)00353-6
State	Published - Jun 17 1998

Keywords

Cyclotron resonance
Electron-electron interactions
GaAs/AlGaAs quantum wells
Magnetophotoluminescence
Modulation doping
Non-parabolicity
Quantum wells

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10.1016/S0921-4526(98)00353-6

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@article{5c52d853c5b44ba2b886e8ed33e86647,

title = "Magnetic-field-dependent multi-line cyclotron resonance in modulation-doped GaAs/AlGaAs quantum wells",

abstract = "Far-infrared magneto-transmission, magneto-transport and magneto-photoluminescence (PL) measurements have been carried out at low temperatures and high magnetic fields on a high electron density modulation-doped GaAs/AlGaAs multiple-quantum-well sample. Two and three electron cyclotron resonance (CR) lines were clearly resolved in the magnetic field ranges 6.5-8.5 T and 13-15 T, respectively. The main features of this multi-line structure and its evolution with magnetic field can be qualitatively understood from a model that accounts for self-consistent band bending (at B = 0), occupancy of Landau levels (LLs) in two subbands, and conduction-band non-parabolicity. Quantitative agreement will require incorporation of self-consistency in the presence of the magnetic field and electron-electron interactions.",

keywords = "Cyclotron resonance, Electron-electron interactions, GaAs/AlGaAs quantum wells, Magnetophotoluminescence, Modulation doping, Non-parabolicity, Quantum wells",

author = "Ryu, \{S. R.\} and Jiang, \{Z. X.\} and Yeo, \{T. M.\} and McCombe, \{B. D.\} and Wang, \{Y. J.\} and W. Schaff",

year = "1998",

month = jun,

day = "17",

doi = "10.1016/S0921-4526(98)00353-6",

language = "English",

volume = "249-251",

pages = "955--960",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Magnetic-field-dependent multi-line cyclotron resonance in modulation-doped GaAs/AlGaAs quantum wells

AU - Ryu, S. R.

AU - Jiang, Z. X.

AU - Yeo, T. M.

AU - McCombe, B. D.

AU - Wang, Y. J.

AU - Schaff, W.

PY - 1998/6/17

Y1 - 1998/6/17

N2 - Far-infrared magneto-transmission, magneto-transport and magneto-photoluminescence (PL) measurements have been carried out at low temperatures and high magnetic fields on a high electron density modulation-doped GaAs/AlGaAs multiple-quantum-well sample. Two and three electron cyclotron resonance (CR) lines were clearly resolved in the magnetic field ranges 6.5-8.5 T and 13-15 T, respectively. The main features of this multi-line structure and its evolution with magnetic field can be qualitatively understood from a model that accounts for self-consistent band bending (at B = 0), occupancy of Landau levels (LLs) in two subbands, and conduction-band non-parabolicity. Quantitative agreement will require incorporation of self-consistency in the presence of the magnetic field and electron-electron interactions.

AB - Far-infrared magneto-transmission, magneto-transport and magneto-photoluminescence (PL) measurements have been carried out at low temperatures and high magnetic fields on a high electron density modulation-doped GaAs/AlGaAs multiple-quantum-well sample. Two and three electron cyclotron resonance (CR) lines were clearly resolved in the magnetic field ranges 6.5-8.5 T and 13-15 T, respectively. The main features of this multi-line structure and its evolution with magnetic field can be qualitatively understood from a model that accounts for self-consistent band bending (at B = 0), occupancy of Landau levels (LLs) in two subbands, and conduction-band non-parabolicity. Quantitative agreement will require incorporation of self-consistency in the presence of the magnetic field and electron-electron interactions.

KW - Cyclotron resonance

KW - Electron-electron interactions

KW - GaAs/AlGaAs quantum wells

KW - Magnetophotoluminescence

KW - Modulation doping

KW - Non-parabolicity

KW - Quantum wells

UR - https://www.scopus.com/pages/publications/0032090421

U2 - 10.1016/S0921-4526(98)00353-6

DO - 10.1016/S0921-4526(98)00353-6

M3 - Article

AN - SCOPUS:0032090421

SN - 0921-4526

VL - 249-251

SP - 955

EP - 960

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Magnetic-field-dependent multi-line cyclotron resonance in modulation-doped GaAs/AlGaAs quantum wells

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Keywords

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