Magnetoresistance calculations for a quantum wire with periodically modulated width

Anna Grincwajg, David K. Ferry

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We present numerical calculations of the magnetoresistance in a ballistic quantum wire with periodically modulated width. Surprisingly, the negative magnetoresistance peak is found to persist to a field strength which is two orders of magnitude larger than in single quantum dots. In the weak B -field regime, our results are in good agreement with recent experiments. We argue that the wide peak is due to multiple backscattering among the segments of the wire, leading to a novel weak localization effect.

Original languageEnglish (US)
Pages (from-to)330-336
Number of pages7
JournalSuperlattices and Microstructures
Volume20
Issue number3
StatePublished - Oct 1996

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Semiconductor quantum wires
Magnetoresistance
quantum wires
Backscattering
Ballistics
ballistics
Semiconductor quantum dots
field strength
backscattering
quantum dots
wire
Wire
Experiments

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Magnetoresistance calculations for a quantum wire with periodically modulated width. / Grincwajg, Anna; Ferry, David K.

In: Superlattices and Microstructures, Vol. 20, No. 3, 10.1996, p. 330-336.

Research output: Contribution to journalArticle

Grincwajg, Anna ; Ferry, David K. / Magnetoresistance calculations for a quantum wire with periodically modulated width. In: Superlattices and Microstructures. 1996 ; Vol. 20, No. 3. pp. 330-336.
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