Individual quantum dot spectroscopy probed by a cryogenic scanning probe

被引：0
|
作者：
Liu, MJ [1 ]
Li, CY [1 ]
Mampazhy, A [1 ]
Yang, CH [1 ]
Yang, MJ [1 ]
机构：
[1] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA
来源：
Physics of Semiconductors, Pts A and B | 2005年 / 772卷
关键词：
D O I：
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中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this paper we report the energy spectra of single electrons confined in a single InAs quantum dot, and single holes confined in a single GaSb quantum dot. These quantum dots are fabricated by laterally reducing the diameter of resonant tunneling (or resonant interband tunneling) diodes. The dc current-voltage characteristics at 4.2K is taken by a cryogenic scanning probe, that during measurement is in direct physical contact with the top electrode.
引用
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页码：653 / 654
页数：2
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