Volume 142, Number 3, May 2023
|Number of page(s)||6|
|Section||Condensed matter and materials physics|
|Published online||26 April 2023|
Disorder-induced mode coupling and symmetry breaking in amorphous solids
1 Department of Chemical Physics, The Weizmann Institute of Science - Rehovot 76100, Israel
2 Center for OPTical IMagery Analysis and Learning, Northwestern Polytechnical University - Xi'an, 710072 China
3 Department of Physics, Indian Institute of Technology - Tirupati 517619, India
(a) E-mail: firstname.lastname@example.org (corresponding author)
Received: 20 January 2023
Accepted: 12 April 2023
Applying very small purely radial strains on amorphous solids in radial geometry one observes elastic responses that break the radial symmetry. Without any plasticity involved, the responses indicate mode coupling contributions even for minute strains. We show that these symmetry-breaking responses are due to disorder, typical to amorphous configurations. The symmetry-breaking responses are quantitatively explained using the classical Michell solutions which are excited by mode coupling.
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