Delocalization in a double quantum dot system

M. Brodsky, N. B. Zhitenev, R. C. Ashoori, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalConference articlepeer-review


We study the delocalization process in a double dot system by merging two quantum dots of different densities. The addition of each electron to the system is detected by a capacitive technique, allowing us to monitor the evolution of the addition spectrum over a very broad range of electron densities. The data indicate that delocalization can occur in different fashions depending on the merging density. While the magnetic field has no effect on the merging of two high-density dots (n≥2×1011 cm-2), it dramatically affects the merging of two dots of lower density (n to approximately 1-2×1011 cm-2).

Original languageEnglish (US)
Pages (from-to)680-683
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number1
StatePublished - Feb 2000
Externally publishedYes
Event13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) - Ottawa, Ont, Can
Duration: Aug 1 1999Aug 6 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics


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