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dc.contributor.authorSen, Dipanjan
dc.contributor.authorThaulow, Christian
dc.contributor.authorSchieffer, Stella V.
dc.contributor.authorCohen, Alan
dc.contributor.authorBuehler, Markus J
dc.date.accessioned2011-01-21T14:35:13Z
dc.date.available2011-01-21T14:35:13Z
dc.date.issued2010-06
dc.date.submitted2010-02
dc.identifier.issn0031-9007
dc.identifier.urihttp://hdl.handle.net/1721.1/60686
dc.description.abstractAt low temperatures silicon is a brittle material that shatters catastrophically, whereas at elevated temperatures, the behavior of silicon changes drastically over a narrow temperature range and suddenly becomes ductile. This brittle-to-ductile transition has been observed in experimental studies, yet its fundamental mechanisms remain unknown. Here we report an atomistic-level study of a fundamental event in this transition, the change from brittle cleavage fracture to dislocation emission at crack tips, using the first principles based reactive force field. By solely raising the temperature, we observe an abrupt change from brittle cracking to dislocation emission from a crack within a ≈10  K temperature interval.en_US
dc.language.isoen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevLett.104.235502en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAPSen_US
dc.titleAtomistic Study of Crack-Tip Cleavage to Dislocation Emission Transition in Silicon Single Crystalsen_US
dc.typeArticleen_US
dc.identifier.citationSen, Dipanjan et al. "Atomistic Study of Crack-Tip Cleavage to Dislocation Emission Transition in Silicon Single Crystals." Physical Review Letters 104.23 (2010): 235502. © 2010 The American Physical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Civil and Environmental Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Laboratory for Atomistic and Molecular Mechanicsen_US
dc.contributor.approverBuehler, Markus J.
dc.contributor.mitauthorSen, Dipanjan
dc.contributor.mitauthorThaulow, Christian
dc.contributor.mitauthorCohen, Alan
dc.contributor.mitauthorSchieffer, Stella V.
dc.contributor.mitauthorBuehler, Markus J.
dc.relation.journalPhysical Review Lettersen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsSen, Dipanjan; Thaulow, Christian; Schieffer, Stella V.; Cohen, Alan; Buehler, Markus J.en
dc.identifier.orcidhttps://orcid.org/0000-0002-4173-9659
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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