Optical Fermi-edge singularities in a one-dimensional electron system with tunable effective mass

J. M. Calleja; A. R. Goñi; A. Pinczuk; B. S. Dennis; J. S. Weiner; L. N. Pfeiffer; K. W. West

doi:10.1103/PhysRevB.51.4285

Optical Fermi-edge singularities in a one-dimensional electron system with tunable effective mass

J. M. Calleja, A. R. Goñi, A. Pinczuk, B. S. Dennis, J. S. Weiner, L. N. Pfeiffer, K. W. West

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

19 Scopus citations

Abstract

We have investigated the dependence on the magnetic field of the optical absorption and emission of a one-dimensional (1D) electron gas in GaAs quantum wires with one occupied subband. Spectra show a strong Fermi-edge singularity that narrows as the Fermi energy in the wires is continuously reduced by the enhancement of the effective mass in a perpendicular magnetic field. At high fields, when the cyclotron energy is larger than the 1D subband spacing, the lowest optical transition splits into a doublet due to the spatial modulation of the Landau levels by the wire potential.

Original language	English (US)
Pages (from-to)	4285-4288
Number of pages	4
Journal	Physical Review B
Volume	51
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.51.4285
State	Published - 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.51.4285

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title = "Optical Fermi-edge singularities in a one-dimensional electron system with tunable effective mass",

abstract = "We have investigated the dependence on the magnetic field of the optical absorption and emission of a one-dimensional (1D) electron gas in GaAs quantum wires with one occupied subband. Spectra show a strong Fermi-edge singularity that narrows as the Fermi energy in the wires is continuously reduced by the enhancement of the effective mass in a perpendicular magnetic field. At high fields, when the cyclotron energy is larger than the 1D subband spacing, the lowest optical transition splits into a doublet due to the spatial modulation of the Landau levels by the wire potential.",

author = "Calleja, \{J. M.\} and Go{\~n}i, \{A. R.\} and A. Pinczuk and Dennis, \{B. S.\} and Weiner, \{J. S.\} and Pfeiffer, \{L. N.\} and West, \{K. W.\}",

year = "1995",

doi = "10.1103/PhysRevB.51.4285",

language = "English (US)",

volume = "51",

pages = "4285--4288",

journal = "Physical Review B",

issn = "0163-1829",

publisher = "American Physical Society",

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T1 - Optical Fermi-edge singularities in a one-dimensional electron system with tunable effective mass

AU - Calleja, J. M.

AU - Goñi, A. R.

AU - Pinczuk, A.

AU - Dennis, B. S.

AU - Weiner, J. S.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 1995

Y1 - 1995

N2 - We have investigated the dependence on the magnetic field of the optical absorption and emission of a one-dimensional (1D) electron gas in GaAs quantum wires with one occupied subband. Spectra show a strong Fermi-edge singularity that narrows as the Fermi energy in the wires is continuously reduced by the enhancement of the effective mass in a perpendicular magnetic field. At high fields, when the cyclotron energy is larger than the 1D subband spacing, the lowest optical transition splits into a doublet due to the spatial modulation of the Landau levels by the wire potential.

AB - We have investigated the dependence on the magnetic field of the optical absorption and emission of a one-dimensional (1D) electron gas in GaAs quantum wires with one occupied subband. Spectra show a strong Fermi-edge singularity that narrows as the Fermi energy in the wires is continuously reduced by the enhancement of the effective mass in a perpendicular magnetic field. At high fields, when the cyclotron energy is larger than the 1D subband spacing, the lowest optical transition splits into a doublet due to the spatial modulation of the Landau levels by the wire potential.

UR - https://www.scopus.com/pages/publications/0000886596

UR - https://www.scopus.com/inward/citedby.url?scp=0000886596&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.51.4285

DO - 10.1103/PhysRevB.51.4285

M3 - Article

AN - SCOPUS:0000886596

SN - 0163-1829

VL - 51

SP - 4285

EP - 4288

JO - Physical Review B

JF - Physical Review B

IS - 7

ER -

Optical Fermi-edge singularities in a one-dimensional electron system with tunable effective mass

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All Science Journal Classification (ASJC) codes

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