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Title: Designing phononic band gaps with sticky potentials
Authors: Zheng, Yuanjian
Mahajan, Shivam
Chattoraj, Joyjit
Ciamarra, Massimo Pica
Keywords: Science::Physics
Issue Date: 2021
Source: Zheng, Y., Mahajan, S., Chattoraj, J. & Ciamarra, M. P. (2021). Designing phononic band gaps with sticky potentials. Frontiers in Physics, 9, 665391-.
Project: 2019-T1-001-03
Journal: Frontiers in Physics
Abstract: Spectral gaps in the vibrational modes of disordered solids are key design elements in the synthesis and control of phononic meta-materials that exhibit a plethora of novel elastic and mechanical properties. However, reliably producing these gaps often require a high degree of network specificity through complex control optimization procedures. In this work, we present as an additional tool to the existing repertoire, a numerical scheme that rapidly generates sizeable spectral gaps in absence of any fine tuning of the network structure or elastic parameters. These gaps occur even in disordered polydisperse systems consisting of relatively few particles (N ~ 10² − 10³). Our proposed procedure exploits sticky potentials that have recently been shown to suppress the formation of soft modes, thus effectively recovering the linear elastic regime where band structures appear, at much shorter length scales than in conventional models of disordered solids. Our approach is relevant to design and realization of gapped spectra in a variety of physical setups ranging from colloidal suspensions to 3D-printed elastic networks.
ISSN: 2296-424X
DOI: 10.3389/fphy.2021.665391
Rights: © 2021 Zheng, Mahajan, Chattoraj and Pica Ciamarra. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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