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Configuration transitions between MDD and spin-polarized pentagonal molecule via lower spin states in a five-electron quantum dot

  • Y. Nishi
  • , P. A. Maksym
  • , D. G. Austing
  • , K. Yamada
  • , H. Aoki
  • , S. Tarucha

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We compare experimental data and a theoretical picture about the magnetic field evolution of the addition energy for putting the fifth electron onto a quantum dot. We probe the ground state transitions of a maximum density droplet state to a high magnetic field, and find an intermediate state before the next stable state is formed. The observed features are excellently reproduced by the "electron-molecule" picture, which suggests that this intermediate state is a low spin state with a configuration that is a superposition of pentagonal and 'square + center' configurations.

Original languageEnglish
Title of host publicationPHYSICS OF SEMICONDUCTORS
Subtitle of host publication27th International Conference on the Physics of Semiconductors, ICPS-27
Pages649-650
Number of pages2
DOIs
Publication statusPublished - Jun 30 2005
Externally publishedYes
EventPHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27 - Flagstaff, AZ, United States
Duration: Jul 26 2004 → Jul 30 2004

Publication series

NameAIP Conference Proceedings
Volume772
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherPHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27
Country/TerritoryUnited States
CityFlagstaff, AZ
Period7/26/04 → 7/30/04

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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