@inproceedings{2f5e07a9e7db4f6d9813bb371eb72e0f,
title = "Band-edge divergence and Fermi-edge singularity in an n-type doped T-shaped quantum wire",
abstract = "We studied photoluminescence-excitation (PLE) spectra of one-dimensional (1D) electron systems in an n-type modulation-doped single quantum wire at various temperatures from 5K to 50K. At low temperature (5K), we observed a single absorption onset, which corresponds to the Fermi edge of degenerate 1D electron gas. As the temperature was increased, this Fermi-edge absorption onset disappeared, while another absorption onset appeared at lower energy, which became a sharp peak at 50K. We assigned this peak to the 1D band-edge absorption induced by the inverse square root divergence of 1D density of states (DOS).",
keywords = "Electron density of states, Fermi-edge singularity, Photoluminescence, Quantum wires",
author = "T. Ihara and M. Yoshita and H. Akiyama and Pfeiffer, {L. N.} and West, {K. W.}",
year = "2007",
doi = "10.1063/1.2730164",
language = "English (US)",
isbn = "9780735403970",
series = "AIP Conference Proceedings",
pages = "863--864",
booktitle = "Physics of Semiconductors - 28th International Conference on the Physics of Semiconductors, ICPS 2006, Part A and B",
note = "28th International Conference on the Physics of Semiconductors, ICPS 2006 ; Conference date: 24-07-2006 Through 28-07-2006",
}