One-dimensional continuum and exciton states in quantum wires

被引：33

作者：

Akiyama, H

Yoshita, M

Pfeiffer, LN

West, KW

Pinczuk, A

机构：

[1] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

[2] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

[3] Columbia Univ, Dept Phys, New York, NY 10027 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 03期

关键词：

D O I：

10.1063/1.1539552

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High-quality T-shaped quantum wires are fabricated by cleaved-edge overgrowth with 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 (1D) excitons. The PLE spectrum for 1D states shows a large peak of ground-state excitons and a small absorption band ascribed to 1D continuum states with an onset at 11 meV above the exciton peak. (C) 2003 American Institute of Physics.

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页码：379 / 381

页数：3

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