File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

김주영

Kim, Ju-Young
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

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

Author(s)
Friedman, NirJennings, Andrew T.Tsekenis, GeorgiosKim, Ju-YoungTao, MoleiUhl, Jonathan T.Greer, Julia R.Dahmen, Karin A.
Issued Date
2012-08
DOI
10.1103/PhysRevLett.109.095507
URI
https://scholarworks.unist.ac.kr/handle/201301/2722
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84865591112
Citation
PHYSICAL REVIEW LETTERS, v.109, no.9, pp.1 - 5
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.
Publisher
AMER PHYSICAL SOC
ISSN
0031-9007

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.