Anomalous magnetoresistance at a mesoscopic bend

D. R S Cumming, H. Ahmed, Trevor Thornton

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We have carried out magnetoresistance measurements on a mesoscopic cross formed from two split gates on a GaAs/AlGaAs 2DEG and have observed anomalous peaks in the bend resistance before the electron collimation is finally destroyed by the magnetic field. We have considered two possible explanations for this effect, and have rejected the possibility of quantum mechanical effects in favor of a classical one in which we postulate the presence of an impurity close to the center of the active region.

Original languageEnglish (US)
Pages (from-to)2755-2757
Number of pages3
JournalApplied Physics Letters
Volume60
Issue number22
DOIs
StatePublished - 1992
Externally publishedYes

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collimation
axioms
aluminum gallium arsenides
impurities
magnetic fields
electrons

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Anomalous magnetoresistance at a mesoscopic bend. / Cumming, D. R S; Ahmed, H.; Thornton, Trevor.

In: Applied Physics Letters, Vol. 60, No. 22, 1992, p. 2755-2757.

Research output: Contribution to journalArticle

Cumming, D. R S ; Ahmed, H. ; Thornton, Trevor. / Anomalous magnetoresistance at a mesoscopic bend. In: Applied Physics Letters. 1992 ; Vol. 60, No. 22. pp. 2755-2757.
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