Large optical singularities of the one-dimensional electron gas in semiconductor quantum wires

J. M. Calleja; A. R. Goñi; B. S. Dennis; J. S. Weiner; A. Pinczuk; S. Schmitt-Rink; L. N. Pfeiffer; K. W. West; J. F. Müller; A. E. Ruckenstein

doi:10.1016/0038-1098(91)90442-X

Large optical singularities of the one-dimensional electron gas in semiconductor quantum wires

J. M. Calleja, A. R. Goñi, B. S. Dennis, J. S. Weiner, A. Pinczuk, S. Schmitt-Rink, L. N. Pfeiffer, K. W. West, J. F. Müller, A. E. Ruckenstein

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

107 Scopus citations

Abstract

Modulation-doped quantum wire structures have been fabricated in the extreme quantum limit in which only the lowest one-dimensional (1D) subband is occupied by electrons. A pronounced Fermi edge singularity is observed for the first time in the absorption and emission spectra of the 1D electron gas. It has a strong temperature dependence determined by the Fermi energy and is much sharper than in two dimensions. The experimental results agree qualitatively with exact diagonalization studies of finite Hubbard chains.

Original language	English (US)
Pages (from-to)	911-915
Number of pages	5
Journal	Solid State Communications
Volume	79
Issue number	11
DOIs	https://doi.org/10.1016/0038-1098(91)90442-X
State	Published - Sep 1991
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/0038-1098(91)90442-X

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title = "Large optical singularities of the one-dimensional electron gas in semiconductor quantum wires",

abstract = "Modulation-doped quantum wire structures have been fabricated in the extreme quantum limit in which only the lowest one-dimensional (1D) subband is occupied by electrons. A pronounced Fermi edge singularity is observed for the first time in the absorption and emission spectra of the 1D electron gas. It has a strong temperature dependence determined by the Fermi energy and is much sharper than in two dimensions. The experimental results agree qualitatively with exact diagonalization studies of finite Hubbard chains.",

author = "Calleja, {J. M.} and Go{\~n}i, {A. R.} and Dennis, {B. S.} and Weiner, {J. S.} and A. Pinczuk and S. Schmitt-Rink and Pfeiffer, {L. N.} and West, {K. W.} and M{\"u}ller, {J. F.} and Ruckenstein, {A. E.}",

year = "1991",

month = sep,

doi = "10.1016/0038-1098(91)90442-X",

language = "English (US)",

volume = "79",

pages = "911--915",

journal = "Solid State Communications",

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TY - JOUR

T1 - Large optical singularities of the one-dimensional electron gas in semiconductor quantum wires

AU - Calleja, J. M.

AU - Goñi, A. R.

AU - Dennis, B. S.

AU - Weiner, J. S.

AU - Pinczuk, A.

AU - Schmitt-Rink, S.

AU - Pfeiffer, L. N.

AU - West, K. W.

AU - Müller, J. F.

AU - Ruckenstein, A. E.

PY - 1991/9

Y1 - 1991/9

N2 - Modulation-doped quantum wire structures have been fabricated in the extreme quantum limit in which only the lowest one-dimensional (1D) subband is occupied by electrons. A pronounced Fermi edge singularity is observed for the first time in the absorption and emission spectra of the 1D electron gas. It has a strong temperature dependence determined by the Fermi energy and is much sharper than in two dimensions. The experimental results agree qualitatively with exact diagonalization studies of finite Hubbard chains.

AB - Modulation-doped quantum wire structures have been fabricated in the extreme quantum limit in which only the lowest one-dimensional (1D) subband is occupied by electrons. A pronounced Fermi edge singularity is observed for the first time in the absorption and emission spectra of the 1D electron gas. It has a strong temperature dependence determined by the Fermi energy and is much sharper than in two dimensions. The experimental results agree qualitatively with exact diagonalization studies of finite Hubbard chains.

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U2 - 10.1016/0038-1098(91)90442-X

DO - 10.1016/0038-1098(91)90442-X

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VL - 79

SP - 911

EP - 915

JO - Solid State Communications

JF - Solid State Communications

IS - 11

ER -

Large optical singularities of the one-dimensional electron gas in semiconductor quantum wires

Abstract

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