Statistical significance of the fine structure in the frequency spectrum of Aharonov-Bohm conductance osillations

F. E. Meijer, A. F. Morpurgo, T. M. Klapwijk, T. Koga, J. Nitta

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We discuss a statistical analysis of Aharonov-Bohm conductance oscillations measured in a two-dimensional ring, in the presence of Rashba spin-orbit interaction. Measurements performed at different values of gate voltage are used to calculate the ensemble-averaged modulus of the Fourier spectrum and, at each frequency, the standard deviation associated to the average. This allows us to prove the statistical significance of a splitting that we observe in the h/e peak of the averaged spectrum. Our work illustrates in detail the role of sample specific effects on the frequency spectrum of Aharonov-Bohm conductance oscillations and it demonstrates how fine structures of a different physical origin can be discriminated from sample specific features.

Original languageEnglish
Article number035308
Pages (from-to)353081-353084
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number3
Publication statusPublished - 2004 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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