Precise experimental characterization of a double quantum dot system with strong capacitive interdot coupling

✍ Scribed by Alexander Hübel; Jürgen Weis; Klaus von Klitzing

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 350 KB
• Volume: 40
• Category: Article
• ISSN: 1386-9477
• DOI: 10.1016/j.physe.2007.09.109

✦ Synopsis

We discuss the experimental determination of appropriate coordinate axes to measure energies in the honeycomb stability diagram of a new double quantum dot structure with strong capacitive interdot coupling. We show that a variation in the charging energies is due to an increase in dot-lead capacitances upon barrier opening, which must generally be taken into account in measurements at high tunnel coupling. In contrast, all other capacitances are constant in our structure.