Control of shell filling with Coulomb interaction in quantum dots side-coupled to quantum wires

Tomohiro Otsuka, Eisuke Abe, Yasuhiro Iye, Shingo Katsumoto

Research output: Contribution to journalConference articlepeer-review

Abstract

We report the control of the orbital occupation by using the intra-orbital Coulomb interaction in quantum dots T-coupled to quantum wires. With the change of the confinement potential, intra-orbital Coulomb interaction exceeds orbital level spacing and influences the orbital occupation. We realize such potential modification by changing either the gate design or the voltages applied to the gates. The rearrangement of the orbital occupation is confirmed from the response of the addition energy spectroscopy to the magnetic field.

Original languageEnglish
Pages (from-to)2873-2875
Number of pages3
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume5
Issue number9
DOIs
Publication statusPublished - 2008 Dec 1
Externally publishedYes
Event34th International Symposium on Compound Semiconductors, ISCS-2007 - Kyoto, Japan
Duration: 2007 Oct 152007 Oct 18

ASJC Scopus subject areas

  • Condensed Matter Physics

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