Atomic scale study of the life cycle of a dislocation in graphene from birth to annihilation

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorLehtinen, O.en_US
dc.contributor.authorKurasch, S.en_US
dc.contributor.authorKrasheninnikov, A.V.en_US
dc.contributor.authorKaiser, U.en_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorElectronic Properties of Materialsen
dc.date.accessioned2017-10-15T20:57:33Z
dc.date.available2017-10-15T20:57:33Z
dc.date.issued2013en_US
dc.description.abstractDislocations, one of the key entities in materials science, govern the properties of any crystalline material. Thus, understanding their life cycle, from creation to annihilation via motion and interaction with other dislocations, point defects and surfaces, is of fundamental importance. Unfortunately, atomic-scale investigations of dislocation evolution in a bulk object are well beyond the spatial and temporal resolution limits of current characterization techniques. Here we overcome the experimental limits by investigating the two-dimensional graphene in an aberration-corrected transmission electron microscope, exploiting the impinging energetic electrons both to image and stimulate atomic-scale morphological changes in the material. The resulting transformations are followed in situ, atom-by-atom, showing the full life cycle of a dislocation from birth to annihilation. Our experiments, combined with atomistic simulations, reveal the evolution of dislocations in two-dimensional systems to be governed by markedly long-ranging out-of-plane buckling.en
dc.description.versionPeer revieweden
dc.format.extent1-7
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationLehtinen, O, Kurasch, S, Krasheninnikov, A V & Kaiser, U 2013, ' Atomic scale study of the life cycle of a dislocation in graphene from birth to annihilation ', Nature Communications, vol. 4, 2098, pp. 1-7 . https://doi.org/10.1038/ncomms3098en
dc.identifier.doi10.1038/ncomms3098en_US
dc.identifier.issn2041-1723
dc.identifier.otherPURE UUID: eedca6a6-735d-49ac-845b-98c5cad0918ben_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/eedca6a6-735d-49ac-845b-98c5cad0918ben_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/14820639/ncomms3098.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/28344
dc.identifier.urnURN:NBN:fi:aalto-201710157204
dc.language.isoenen
dc.relation.ispartofseriesNATURE COMMUNICATIONSen
dc.relation.ispartofseriesVolume 4en
dc.rightsopenAccessen
dc.subject.keywordgrapheneen_US
dc.titleAtomic scale study of the life cycle of a dislocation in graphene from birth to annihilationen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

Files