The Effect of Embedded Nanoparticles on the Phonon Spectrum of Ice: An Inelastic X-ray Scattering Study
Name
nanomaterials-13-00918.pdf
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3.7 MB
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Checksum (MD5)
6619e393075f90d66fc934275ca52aa1
Author(s)
De Francesco, Alessio
Scaccia, Luisa
Formisano, Ferdinando
Guarini, Eleonora
Bafile, Ubaldo
Nykypanchuk, Dmytro
Alatas, Ahmet
Li, Mingda
Lynch, Scott T.
Cunsolo, Alessandro
Date Issued
March 1, 2023
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Nanomaterials 13 (5): 918 (2023)
Version
Final published version
Abstract
As a contribution to the ongoing effort toward high-frequency sound manipulation in composite materials, we use Inelastic X-ray Scattering to probe the phonon spectrum of ice, either in a pure form or with a sparse amount of nanoparticles embedded in it. The study aims at elucidating the ability of nanocolloids to condition the collective atomic vibrations of the surrounding environment. We observe that a nanoparticle concentration of about 1 % in volume is sufficient to visibly affect the phonon spectrum of the icy substrate, mainly canceling its optical modes and adding nanoparticle phonon excitations to it. We highlight this phenomenon thanks to the lineshape modeling based on a Bayesian inference, which enables us to capture the finest detail of the scattering signal. The results of this study can empower new routes toward the shaping of sound propagation in materials through the control of their structural heterogeneity.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.3390/nano13050918
