Parity effect of bipolar quantum Hall edge transport around graphene antidots

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...

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Autores principales: Matsuo, Sadashige, Nakaharai, Shu, Komatsu, Katsuyoshi, Tsukagoshi, Kazuhito, Moriyama, Takahiro, Ono, Teruo, Kobayashi, Kensuke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4485210/
https://www.ncbi.nlm.nih.gov/pubmed/26122468
http://dx.doi.org/10.1038/srep11723
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author Matsuo, Sadashige
Nakaharai, Shu
Komatsu, Katsuyoshi
Tsukagoshi, Kazuhito
Moriyama, Takahiro
Ono, Teruo
Kobayashi, Kensuke
author_facet Matsuo, Sadashige
Nakaharai, Shu
Komatsu, Katsuyoshi
Tsukagoshi, Kazuhito
Moriyama, Takahiro
Ono, Teruo
Kobayashi, Kensuke
author_sort Matsuo, Sadashige
collection PubMed
description 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.
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spelling pubmed-44852102015-07-08 Parity effect of bipolar quantum Hall edge transport around graphene antidots Matsuo, Sadashige Nakaharai, Shu Komatsu, Katsuyoshi Tsukagoshi, Kazuhito Moriyama, Takahiro Ono, Teruo Kobayashi, Kensuke Sci Rep Article 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. Nature Publishing Group 2015-06-30 /pmc/articles/PMC4485210/ /pubmed/26122468 http://dx.doi.org/10.1038/srep11723 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Matsuo, Sadashige
Nakaharai, Shu
Komatsu, Katsuyoshi
Tsukagoshi, Kazuhito
Moriyama, Takahiro
Ono, Teruo
Kobayashi, Kensuke
Parity effect of bipolar quantum Hall edge transport around graphene antidots
title Parity effect of bipolar quantum Hall edge transport around graphene antidots
title_full Parity effect of bipolar quantum Hall edge transport around graphene antidots
title_fullStr Parity effect of bipolar quantum Hall edge transport around graphene antidots
title_full_unstemmed Parity effect of bipolar quantum Hall edge transport around graphene antidots
title_short Parity effect of bipolar quantum Hall edge transport around graphene antidots
title_sort parity effect of bipolar quantum hall edge transport around graphene antidots
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4485210/
https://www.ncbi.nlm.nih.gov/pubmed/26122468
http://dx.doi.org/10.1038/srep11723
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