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dc.contributor.authorBhandari, Sagar
dc.contributor.authorLee, Gil-Ho
dc.contributor.authorKlales, Anna Margaret
dc.contributor.authorWatanabe, Kenji
dc.contributor.authorTaniguchi, Takashi
dc.contributor.authorHeller, Eric J.
dc.contributor.authorKim, Philip
dc.contributor.authorWestervelt, Robert M.
dc.date.accessioned2017-10-16T17:43:44Z
dc.date.issued2016
dc.identifier.citationBhandari, Sagar, Gil-Ho Lee, Anna Klales, Kenji Watanabe, Takashi Taniguchi, Eric Heller, Philip Kim, and Robert M. Westervelt. 2016. “Imaging Cyclotron Orbits of Electrons in Graphene.” Nano Letters 16 (3) (March 9): 1690–1694. doi:10.1021/acs.nanolett.5b04609.en_US
dc.identifier.issn1530-6984en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:34221824
dc.description.abstractElectrons in graphene can travel for several microns without scattering at low temperatures, and their motion becomes ballistic, following classical trajectories. When a magnetic field B is applied perpendicular to the plane, electrons follow cyclotron orbits. Magnetic focusing occurs when electrons injected from one narrow contact focus onto a second contact located an integer number of cyclotron diameters away. By tuning the magnetic field B and electron density n in the graphene layer, we observe magnetic focusing peaks. We use a cooled scanning gate microscope to image cyclotron trajectories in graphene at 4.2 K. The tip creates a local change in density that casts a shadow by deflecting electrons flowing nearby; an image of flow can be obtained by measuring the transmission between contacts as the tip is raster scanned across the sample. On the first magnetic focusing peak, we image a cyclotron orbit that extends from one contact to the other. In addition, we study the geometry of orbits deflected into the second point contact by the tip.en_US
dc.description.sponsorshipPhysicsen_US
dc.language.isoen_USen_US
dc.publisherAmerican Chemical Society (ACS)en_US
dc.relation.isversionofdoi:10.1021/acs.nanolett.5b04609en_US
dc.relation.hasversionhttp://arxiv.org/abs/1510.05197en_US
dash.licenseOAP
dc.subjectGrapheneen_US
dc.subjectimage cyclotron orbitsen_US
dc.subjectmagnetic focusingen_US
dc.subjectscanning gate microscopeen_US
dc.titleImaging Cyclotron Orbits of Electrons in Grapheneen_US
dc.typeJournal Articleen_US
dc.description.versionAccepted Manuscripten_US
dc.relation.journalNano Lettersen_US
dash.depositing.authorKim, Philip
dc.date.available2017-10-16T17:43:44Z
dc.identifier.doi10.1021/acs.nanolett.5b04609*
workflow.legacycommentsFAR2016en_US
dash.contributor.affiliatedKlales, Anna
dash.contributor.affiliatedLee, Gil-Ho
dash.contributor.affiliatedBhandari, Sagar
dash.contributor.affiliatedWestervelt, Robert
dash.contributor.affiliatedKim, Philip
dash.contributor.affiliatedHeller, Eric
dc.identifier.orcid0000-0002-3046-1807


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