Anderson Localization of Thermal Phonons Leads to a Thermal Conductivity Maximum
Author(s)
Mendoza, Jonathan M
Chen, Gang
Date Issued
December 2016
Journal
Nano Letters
Publisher
American Chemical Society (ACS)
Citation
Mendoza, Jonathan, and Chen, Gang. “Anderson Localization of Thermal Phonons Leads to a Thermal Conductivity Maximum.” Nano Letters 16, 12 (December 2016): 7616–7620 © 2016 American Chemical Society
Version
Author's final manuscript
Abstract
Our elastic model of ErAs disordered GaAs/AlAs superlattices exhibits a local thermal conductivity maximum as a function of length due to exponentially suppressed Anderson-localized phonons. By analyzing the sample-to-sample fluctuations in the dimensionless conductance, g, the transition from diffusive to localized transport is identified as the crossover from the multichannel to single-channel transport regime g ≈ 1. Single parameter scaling is shown to hold in this crossover regime through the universality of the probability distribution of g that is independent of system size and disorder strength.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
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DOI of Published Version
https://doi.org/10.1021/acs.nanolett.6b03550
