One-dimensional band-edge absorption in a doped quantum wire

Toshiyuki Ihara; Yuhei Hayamizu; Masahiro Yoshita; Hidefumi Akiyama; Loren N. Pfeiffer; Ken W. West

doi:10.1103/PhysRevLett.99.126803

One-dimensional band-edge absorption in a doped quantum wire

Toshiyuki Ihara, Yuhei Hayamizu, Masahiro Yoshita, Hidefumi Akiyama, Loren N. Pfeiffer, Ken W. West

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

13 Scopus citations

Abstract

Low-temperature photoluminescence-excitation spectra are studied in an n-type modulation-doped T-shaped single quantum wire with a gate to tune electron densities. With a nondegenerate one-dimensional (1D) electron gas, the band-edge absorption exhibits a sharp peak structure induced by the 1D density of states. When the dense 1D electron gas is degenerate at a low temperature, we observe a Fermi-edge absorption onset without many-body modifications.

Original language	English (US)
Article number	126803
Journal	Physical review letters
Volume	99
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.99.126803
State	Published - Sep 20 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.99.126803

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AU - Hayamizu, Yuhei

AU - Yoshita, Masahiro

AU - Akiyama, Hidefumi

AU - Pfeiffer, Loren N.

AU - West, Ken W.

PY - 2007/9/20

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AB - Low-temperature photoluminescence-excitation spectra are studied in an n-type modulation-doped T-shaped single quantum wire with a gate to tune electron densities. With a nondegenerate one-dimensional (1D) electron gas, the band-edge absorption exhibits a sharp peak structure induced by the 1D density of states. When the dense 1D electron gas is degenerate at a low temperature, we observe a Fermi-edge absorption onset without many-body modifications.

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One-dimensional band-edge absorption in a doped quantum wire

Abstract

All Science Journal Classification (ASJC) codes

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