Magnetoconductance of the Corbino disk in graphene

URN to cite this document:: urn:nbn:de:bvb:355-epub-95787
DOI to cite this document:: 10.5283/epub.9578

Rycerz, Adam

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Date of publication of this fulltext: 28 Sep 2009 08:00

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Abstract

Electron transport through the Corbino disk in graphene is studied in the presence of uniform magnetic fields. At the Dirac point, we observe conductance oscillations with the flux piercing the disk area Φd, characterized by the period Φ0=2(h/e)ln(Ro/Ri), where Ro(Ri) is the outer (inner) disk radius. The oscillations magnitude increase with the radii ratio and exceed 10% of the average ...