Viscoelasticity of stepped interfaces
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ApplPhysLett_103_171908.pdf
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993.43 KB
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cc97991b307a9873a45047d2ec6f2cda
Author(s)
Demkowicz, Michael J.
Skirlo, Scott A.
Date Issued
October 2013
Journal
Applied Physics Letters
Publisher
American Institute of Physics (AIP)
Citation
Skirlo, S. A., and M. J. Demkowicz. “Viscoelasticity of Stepped Interfaces.” Appl. Phys. Lett. 103, no. 17 (2013): 171908. © 2013 AIP Publishing LLC
Version
Final published version
Abstract
Using molecular dynamics modeling, we show that interfaces in sputter deposited Cu-Nb superlattices exhibit time-dependent elasticity, i.e., viscoelasticity, under shear loading. In the high temperature and small strain rate limit, the interfacial shear modulus approaches a value proportional to the density of steps in the interface. It may therefore be possible to tailor the low-frequency shear moduli of interfaces by controlling their step densities.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Physics
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Article 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.
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DOI of Published Version
https://doi.org/10.1063/1.4827103
