One-dimensional continuum and exciton states in quantum wires
介观与纳米尺度物理
2009-11-07 v1 材料科学
摘要
High-quality T-shaped quantum wires are fabricated by cleaved-edge overgrowth with the molecular beam epitaxy on the interface improved by a growth-interrupt high-temperature anneal. Characterization by micro-photoluminescence (PL) and PL excitation (PLE) spectroscopy at 5 K reveals high uniformity, a sharp spectral width, and a small Stokes shift of one-dimensional (1-D) excitons. The PLE spectrum for 1-D states shows a large peak of ground-state excitons and a small absorption band ascribed to 1-D continuum states with an onset at 11 meV above the exciton peak.
引用
@article{arxiv.cond-mat/0209251,
title = {One-dimensional continuum and exciton states in quantum wires},
author = {Hidefumi Akiyama and Loren N. Pfeiffer and Masahiro Yoshita and Aron Pinczuk and Ken W. West},
journal= {arXiv preprint arXiv:cond-mat/0209251},
year = {2009}
}
备注
4 pages, 4 figures, RevTeX