Anderson Localization of Thermal Phonons Leads to a Thermal Conductivity Maximum
Author(s)
Mendoza, Jonathan M; Chen, Gang
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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.
Date issued
2016-12Department
Massachusetts Institute of Technology. Department of Mechanical EngineeringJournal
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
ISSN
1530-6984
1530-6992