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Kim, Ju-Young
Robust Multifunctional Materials Lab
Research Interests
  • Flexible / stretchable devices, nano-mechanics, nanoporous metal, materials reliability

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Statistics of Dislocation Slip Avalanches in Nanosized Single Crystals Show Tuned Critical Behavior Predicted by a Simple Mean Field Model

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dc.contributor.author Friedman, Nir ko
dc.contributor.author Jennings, Andrew T. ko
dc.contributor.author Tsekenis, Georgios ko
dc.contributor.author Kim, Ju-Young ko
dc.contributor.author Tao, Molei ko
dc.contributor.author Uhl, Jonathan T. ko
dc.contributor.author Greer, Julia R. ko
dc.contributor.author Dahmen, Karin A. ko
dc.date.available 2014-04-09T08:35:27Z -
dc.date.created 2013-06-04 ko
dc.date.issued 2012-08 -
dc.identifier.citation PHYSICAL REVIEW LETTERS, v.109, no.9, pp.1 - 5 ko
dc.identifier.issn 0031-9007 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/2722 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84865591112 ko
dc.description.abstract We show that slowly sheared metallic nanocrystals deform via discrete strain bursts (slips), whose size distributions follow power laws with stress-dependent cutoffs. We show for the first time that plasticity reflects tuned criticality, by collapsing the stress-dependent slip-size distributions onto a predicted scaling function. Both power-law exponents and scaling function agree with mean-field theory predictions. Our study of 7 materials and 2 crystal structures, at various deformation rates, stresses, and crystal sizes down to 75 nm, attests to the universal characteristics of plasticity. ko
dc.description.statementofresponsibility open -
dc.language ENG ko
dc.publisher AMER PHYSICAL SOC ko
dc.subject Critical behavior ko
dc.subject Crystal size ko
dc.subject Deformation rates ko
dc.subject Dislocation slip ko
dc.subject Mean field models ko
dc.subject Metallic nanocrystals ko
dc.subject Nano-sized ko
dc.subject Power law exponent ko
dc.subject Power-law ko
dc.subject Scaling functions ko
dc.subject Stress-dependent ko
dc.title Statistics of Dislocation Slip Avalanches in Nanosized Single Crystals Show Tuned Critical Behavior Predicted by a Simple Mean Field Model ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84865591112 ko
dc.identifier.wosid 000308134400011 ko
dc.type.rims ART ko
dc.description.wostc 23 *
dc.description.scopustc 20 *
dc.date.tcdate 2015-02-28 *
dc.date.scptcdate 2014-07-12 *
dc.identifier.doi 10.1103/PhysRevLett.109.095507 ko
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