Parity effect of bipolar quantum Hall edge transport around graphene antidots

Sadashige Matsuo, Shu Nakaharai, Katsuyoshi Komatsu, Kazuhito Tsukagoshi, Takahiro Moriyama, Teruo Ono, Kensuke Kobayashi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Parity effect, which means that even-odd property of an integer physical parameter results in an essential difference, ubiquitously appears and enables us to grasp its physical essence as the microscopic mechanism is less significant in coarse graining. Here we report a new parity effect of quantum Hall edge transport in graphene antidot devices with pn junctions (PNJs). We found and experimentally verified that the bipolar quantum Hall edge transport is drastically affected by the parity of the number of PNJs. This parity effect is universal in bipolar quantum Hall edge transport of not only graphene but also massless Dirac electron systems. These results offer a promising way to design electron interferometers in graphene.

Original languageEnglish
Article number11723
JournalScientific reports
Volume5
DOIs
Publication statusPublished - 2015 Jun 30
Externally publishedYes

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Parity effect of bipolar quantum Hall edge transport around graphene antidots'. Together they form a unique fingerprint.

  • Cite this

    Matsuo, S., Nakaharai, S., Komatsu, K., Tsukagoshi, K., Moriyama, T., Ono, T., & Kobayashi, K. (2015). Parity effect of bipolar quantum Hall edge transport around graphene antidots. Scientific reports, 5, [11723]. https://doi.org/10.1038/srep11723