Aharonov-Bohm interferometer based on np junctions in graphene nanoribbons

A. Mreńca-Kolasińska, S. Heun, and B. Szafran
Phys. Rev. B 93, 125411 – Published 8 March 2016
PDFHTMLExport Citation

Abstract

We demonstrate that the phenomenon of current confinement along graphene np junctions at high magnetic fields can be used to form an Aharonov-Bohm interferometer. The interference system exploits a closed np junction that can be induced by a floating gate within the sample, and coupling of the junction currents with the edge currents in the quantum Hall regime. Operation of the device requires current splitting at the edge and the np junction contacts which is found for armchair ribbons at low Fermi energy.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 12 November 2015
  • Revised 28 January 2016

DOI:https://doi.org/10.1103/PhysRevB.93.125411

©2016 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

A. Mreńca-Kolasińska1,2,*, S. Heun2, and B. Szafran1

  • 1AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059 Kraków, Poland
  • 2NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro 12, 56127 Pisa, Italy

  • *Corresponding author: alina.mrenca@fis.agh.edu.pl

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 93, Iss. 12 — 15 March 2016

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×