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

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Lehtinen, O. Kurasch, S. Krasheninnikov, A.V. Kaiser, U. 2017-10-15T20:57:33Z 2017-10-15T20:57:33Z 2013
dc.identifier.citation Lehtinen , 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 . DOI: 10.1038/ncomms3098 en
dc.identifier.issn 2041-1723
dc.identifier.other PURE UUID: eedca6a6-735d-49ac-845b-98c5cad0918b
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE FILEURL:
dc.description.abstract Dislocations, 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.format.extent 1-7
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries NATURE COMMUNICATIONS en
dc.relation.ispartofseries Volume 4 en
dc.rights openAccess en
dc.subject.other 114 Physical sciences en
dc.subject.other 221 Nanotechnology en
dc.subject.other 214 Mechanical engineering en
dc.subject.other 218 Environmental engineering en
dc.title Atomic scale study of the life cycle of a dislocation in graphene from birth to annihilation en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics en
dc.subject.keyword graphene
dc.subject.keyword 114 Physical sciences
dc.subject.keyword 221 Nanotechnology
dc.subject.keyword 214 Mechanical engineering
dc.subject.keyword 218 Environmental engineering
dc.identifier.urn URN:NBN:fi:aalto-201710157204
dc.identifier.doi 10.1038/ncomms3098
dc.type.version publishedVersion

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