Individual quantum dot spectroscopy probed by a cryogenic scanning probe

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 cu...

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Bibliographic Details
Main Authors: Liu, Mingjiao, Li, Changyi, Mampazhy, Arun, Yang, Chia-Hung, Yang, Ming-Jey
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary: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.
ISSN:0094-243X
DOI:10.1063/1.1994276