Weak localization in ballistic quantum dots

R. Akis, D. K. Ferry, J. P. Bird, Dragica Vasileska

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Previously, there has been much discussion about the zero-field resistance peaks observed in experiments on quantum dots and how this effect can be interpreted as weak localization. Performing numerical simulations of quantum dots of different sizes and shapes, we obtain resistance peaks similar to those obtained experimentally. However, our results show that these peaks may have a different origin, occurring as a result of a conductance resonance structure that is a reflection of the underlying energy spectrum. Importantly, our results explain why such peaks are ubiquitous and occur in instances where the underlying assumptions of the weak-localization theory are not being satisfied.

Original languageEnglish (US)
Pages (from-to)2680-2690
Number of pages11
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Issue number4
StatePublished - Jul 15 1999

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Ballistics
ballistics
Semiconductor quantum dots
quantum dots
Computer simulation
energy spectra
Experiments
simulation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Weak localization in ballistic quantum dots. / Akis, R.; Ferry, D. K.; Bird, J. P.; Vasileska, Dragica.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 60, No. 4, 15.07.1999, p. 2680-2690.

Research output: Contribution to journalArticle

Akis, R. ; Ferry, D. K. ; Bird, J. P. ; Vasileska, Dragica. / Weak localization in ballistic quantum dots. In: Physical Review B - Condensed Matter and Materials Physics. 1999 ; Vol. 60, No. 4. pp. 2680-2690.
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