{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1361981470533564928.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1021/nl5006542"}},{"identifier":{"@type":"URI","@value":"https://pubs.acs.org/doi/pdf/10.1021/nl5006542"}},{"identifier":{"@type":"DOI","@value":"10.48550/arxiv.1403.5225"}},{"identifier":{"@type":"PMID","@value":"24844319"}}],"dc:title":[{"@value":"Electronic Properties of Graphene Encapsulated with Different Two-Dimensional Atomic Crystals"}],"description":[{"notation":[{"@value":"Hexagonal boron nitride is the only substrate that has so far allowed graphene devices exhibiting micron-scale ballistic transport. Can other atomically flat crystals be used as substrates for making quality graphene heterostructures? Here we report on our search for alternative substrates. The devices fabricated by encapsulating graphene with molybdenum or tungsten disulphides and hBN are found to exhibit consistently high carrier mobilities of about 60,000 cm$^{2}$V$^{-1}$s$^{-1}$. In contrast, encapsulation with atomically flat layered oxides such as mica, bismuth strontium calcium copper oxide and vanadium pentoxide results in exceptionally low quality of graphene devices with mobilities of ~ 1,000 cm$^{2}$ V$^{-1}$s$^{-1}$. We attribute the difference mainly to self-cleansing that takes place at interfaces between graphene, hBN and transition metal dichalcogenides. Surface contamination assembles into large pockets allowing the rest of the interface to become atomically clean. The cleansing process does not occur for graphene on atomically flat oxide substrates."}]},{"notation":[{"@value":"19 pages, 11 figures, 1 table including Supporting Information"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380004055537814682","@type":"Researcher","foaf:name":[{"@value":"A. V. Kretinin"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533565056","@type":"Researcher","foaf:name":[{"@value":"Y. Cao"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564932","@type":"Researcher","foaf:name":[{"@value":"J. S. Tu"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533565060","@type":"Researcher","foaf:name":[{"@value":"G. L. Yu"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564937","@type":"Researcher","foaf:name":[{"@value":"R. Jalil"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564933","@type":"Researcher","foaf:name":[{"@value":"K. S. Novoselov"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564930","@type":"Researcher","foaf:name":[{"@value":"S. J. Haigh"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564935","@type":"Researcher","foaf:name":[{"@value":"A. Gholinia"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564939","@type":"Researcher","foaf:name":[{"@value":"A. Mishchenko"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564928","@type":"Researcher","foaf:name":[{"@value":"M. Lozada"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533565059","@type":"Researcher","foaf:name":[{"@value":"T. Georgiou"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564934","@type":"Researcher","foaf:name":[{"@value":"C. R. Woods"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564929","@type":"Researcher","foaf:name":[{"@value":"F. Withers"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533565064","@type":"Researcher","foaf:name":[{"@value":"P. Blake"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533565058","@type":"Researcher","foaf:name":[{"@value":"G. Eda"}],"jpcoar:affiliationName":[{"@value":"Graphene\rResearch Centre, National University of Singapore, 6 Science\rDrive 2, Singapore, Singapore 117546"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564936","@type":"Researcher","foaf:name":[{"@value":"A. Wirsig"}],"jpcoar:affiliationName":[{"@value":"Paul\rDrude Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533565063","@type":"Researcher","foaf:name":[{"@value":"C. Hucho"}],"jpcoar:affiliationName":[{"@value":"Paul\rDrude Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564931","@type":"Researcher","foaf:name":[{"@value":"K. Watanabe"}],"jpcoar:affiliationName":[{"@value":"National\rInstitute for Materials Science, 1-1 Namiki, Tsukuba 305-0044 Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533565057","@type":"Researcher","foaf:name":[{"@value":"T. Taniguchi"}],"jpcoar:affiliationName":[{"@value":"National\rInstitute for Materials Science, 1-1 Namiki, Tsukuba 305-0044 Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533564938","@type":"Researcher","foaf:name":[{"@value":"A. K. Geim"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470533565061","@type":"Researcher","foaf:name":[{"@value":"R. V. Gorbachev"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"15306984"},{"@type":"EISSN","@value":"15306992"}],"prism:publicationName":[{"@value":"Nano Letters"}],"dc:publisher":[{"@value":"American Chemical Society (ACS)"}],"prism:publicationDate":"2014-05-23","prism:volume":"14","prism:number":"6","prism:startingPage":"3270","prism:endingPage":"3276"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"https://pubs.acs.org/doi/pdf/10.1021/nl5006542"}],"createdAt":"2014-05-20","modifiedAt":"2023-04-14","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Condensed%20Matter%20-%20Materials%20Science","dc:title":"Condensed Matter - Materials Science"},{"@id":"https://cir.nii.ac.jp/all?q=Condensed%20Matter%20-%20Mesoscale%20and%20Nanoscale%20Physics","dc:title":"Condensed Matter - Mesoscale and Nanoscale Physics"},{"@id":"https://cir.nii.ac.jp/all?q=Materials%20Science%20(cond-mat.mtrl-sci)","dc:title":"Materials Science (cond-mat.mtrl-sci)"},{"@id":"https://cir.nii.ac.jp/all?q=FOS:%20Physical%20sciences","dc:title":"FOS: Physical sciences"},{"@id":"https://cir.nii.ac.jp/all?q=layered%20oxides","dc:title":"layered oxides"},{"@id":"https://cir.nii.ac.jp/all?q=transitional%20metals%20dichalcogenides","dc:title":"transitional metals dichalcogenides"},{"@id":"https://cir.nii.ac.jp/all?q=capacitance%20spectroscopy","dc:title":"capacitance spectroscopy"},{"@id":"https://cir.nii.ac.jp/all?q=boron%20nitride","dc:title":"boron nitride"},{"@id":"https://cir.nii.ac.jp/all?q=Mesoscale%20and%20Nanoscale%20Physics%20(cond-mat.mes-hall)","dc:title":"Mesoscale and Nanoscale Physics (cond-mat.mes-hall)"},{"@id":"https://cir.nii.ac.jp/all?q=Graphene","dc:title":"Graphene"},{"@id":"https://cir.nii.ac.jp/all?q=carrier%20mobility","dc:title":"carrier mobility"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050008688836900480","@type":"Article","resourceType":"学術雑誌論文(journal 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