Magnetoresistance experiments and quasi-classical calculations regarding backscattering in open quantum dots

R. Brunner, R. Meisels, F. Kuchar, M. Elhassan, J. P. Bird, D. K. Ferry, K. Ishibashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Closed and open quantum dots are low-dimensional electron systems with different strength of coupling to the two-dimensional environment. In the case of a the closed dot, only transport by tunneling is possible. Our work, on the the other hand, investigates the transport of open quantum dots strongly coupled to the surrounding two-dimensional electron system. The open dot show peculiar peaks in their magnetoresistance. We compare experimental results with those of a semi-classical model using trajectories in a parabolic potential. Using a velocity distribution of the incoming electrons based on Fermi-Dirac statistics we can explain the temperature dependence of the peak heights.

Original languageEnglish (US)
Title of host publicationPHYSICS OF SEMICONDUCTORS
Subtitle of host publication27th International Conference on the Physics of Semiconductors, ICPS-27
Pages801-802
Number of pages2
DOIs
StatePublished - Jun 30 2005
EventPHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27 - Flagstaff, AZ, United States
Duration: Jul 26 2004Jul 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
CountryUnited States
CityFlagstaff, AZ
Period7/26/047/30/04

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

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