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Article: Theoretical Design of Topological Heteronanotubes

TitleTheoretical Design of Topological Heteronanotubes
Authors
KeywordsTopological heteronanotube
carbon devices
low dissipation
topological solenoid
Issue Date2019
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/nanolett
Citation
Nano Letters, 2019, v. 19 n. 6, p. 4146-4150 How to Cite?
AbstractWe propose and investigate the idea of topological heteronanotubes (THTs) for realizing an one-dimensional (1D) topological material platform that can pave the way to low-power carbon nanoelectronics at room temperature. We predict that the coaxial double-wall heteronanotube, a carbon nanotube (CNT) inside a boron nitride nanotube (BNNT), can act as a THT. Dissipationless topological conducting pathways on the THT are protected by a valley-dependent topological invariance that originates from local topological phase transitions of the CNT modulated by the CNT–BNNT interaction. Spiral THTs, where topological current flows spirally around the tube, function as nanoscale solenoids to induce remarkable magnetic fields due to the dense moiré nanopatterning. The generality and robustness of the THT materials are demonstrated by investigating different tube diameters, tube indexes, and tube types as well as topological-pathway orientations through first principles.
Persistent Identifierhttp://hdl.handle.net/10722/272301
ISSN
2019 Impact Factor: 11.238
2015 SCImago Journal Rankings: 9.006

 

DC FieldValueLanguage
dc.contributor.authorHu, C-
dc.contributor.authorMichaud-Rioux, V-
dc.contributor.authorYao, W-
dc.contributor.authorGuo, H-
dc.date.accessioned2019-07-20T10:39:35Z-
dc.date.available2019-07-20T10:39:35Z-
dc.date.issued2019-
dc.identifier.citationNano Letters, 2019, v. 19 n. 6, p. 4146-4150-
dc.identifier.issn1530-6984-
dc.identifier.urihttp://hdl.handle.net/10722/272301-
dc.description.abstractWe propose and investigate the idea of topological heteronanotubes (THTs) for realizing an one-dimensional (1D) topological material platform that can pave the way to low-power carbon nanoelectronics at room temperature. We predict that the coaxial double-wall heteronanotube, a carbon nanotube (CNT) inside a boron nitride nanotube (BNNT), can act as a THT. Dissipationless topological conducting pathways on the THT are protected by a valley-dependent topological invariance that originates from local topological phase transitions of the CNT modulated by the CNT–BNNT interaction. Spiral THTs, where topological current flows spirally around the tube, function as nanoscale solenoids to induce remarkable magnetic fields due to the dense moiré nanopatterning. The generality and robustness of the THT materials are demonstrated by investigating different tube diameters, tube indexes, and tube types as well as topological-pathway orientations through first principles.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/nanolett-
dc.relation.ispartofNano Letters-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].-
dc.subjectTopological heteronanotube-
dc.subjectcarbon devices-
dc.subjectlow dissipation-
dc.subjecttopological solenoid-
dc.titleTheoretical Design of Topological Heteronanotubes-
dc.typeArticle-
dc.identifier.emailYao, W: wangyao@hku.hk-
dc.identifier.authorityYao, W=rp00827-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.nanolett.9b01661-
dc.identifier.pmid31117763-
dc.identifier.scopuseid_2-s2.0-85067357732-
dc.identifier.hkuros298574-
dc.identifier.volume19-
dc.identifier.issue6-
dc.identifier.spage4146-
dc.identifier.epage4150-
dc.publisher.placeUnited States-

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