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dc.contributor.authorJulku, Aleksi
dc.contributor.authorPeltonen, Teemu J.
dc.contributor.authorLiang, Long
dc.contributor.authorHeikkilä, Tero T.
dc.contributor.authorTörmä, Päivi
dc.date.accessioned2020-03-30T14:40:42Z
dc.date.available2020-03-30T14:40:42Z
dc.date.issued2020
dc.identifier.citationJulku, A., Peltonen, T. J., Liang, L., Heikkilä, T. T., & Törmä, P. (2020). Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene. <i>Physical Review B</i>, <i>101</i>(6), Article 060505. <a href="https://doi.org/10.1103/PhysRevB.101.060505" target="_blank">https://doi.org/10.1103/PhysRevB.101.060505</a>
dc.identifier.otherCONVID_35110317
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/68377
dc.description.abstractWe study superconductivity of twisted bilayer graphene with local and nonlocal attractive interactions. We obtain the superfluid weight and Berezinskii-Kosterlitz-Thouless (BKT) transition temperature for microscopic tight-binding and low-energy continuum models. We predict qualitative differences between local and nonlocal interaction schemes which could be distinguished experimentally. In the flat-band limit where the pair potential exceeds the band width we show that the superfluid weight and BKT temperature are determined by multiband processes and quantum geometry of the band.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review B
dc.rightsIn Copyright
dc.subject.otherBKT transition
dc.subject.othermultiband superconductivity
dc.subject.othersuperconducting RF
dc.subject.othersuperconducting fluctuations
dc.subject.othersuperconducting phase transition
dc.subject.othersuperfluid density
dc.titleSuperfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202003302590
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn2469-9950
dc.relation.numberinseries6
dc.relation.volume101
dc.type.versionpublishedVersion
dc.rights.copyright© 2020 American Physical Society
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber317118
dc.subject.ysosuprajohtavuus
dc.subject.ysonanorakenteet
dc.subject.ysografeeni
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p9398
jyx.subject.urihttp://www.yso.fi/onto/yso/p25315
jyx.subject.urihttp://www.yso.fi/onto/yso/p24483
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.1103/PhysRevB.101.060505
dc.relation.funderResearch Council of Finlanden
dc.relation.funderSuomen Akatemiafi
jyx.fundingprogramAcademy Project, AoFen
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundinginformationThis work was supported by the Academy of Finland underProjects No. 303351, No. 307419, No. 317118, and No.318987, and by the European Research Council (ERC-2013-AdG-340748-CODE). L.L. acknowledges the Aalto Centrefor Quantum Engineering for support. A.J. acknowledgessupport from the Vilho, Yrjö, and Kalle Väisälä Foundation.Computing resources were provided by Triton cluster at AaltoUniversity. We acknowledge grants of computer capacity fromthe Finnish Grid and Cloud Infrastructure (persistent identifierurn:nbn:fi:research-infras-2016072533)
dc.type.okmA1


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