Unified study of viscoelasticity and sound damping in hard and soft amorphous solids
Abstract Amorphous solids are diverse materials that take on various forms such as structural glasses, granular materials, foams, emulsions, and biological systems. Recent research has made significant progress in understanding non-phonon vibrational modes universally present in amorphous materials,...
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Nature Portfolio
2025-01-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-025-01933-5 |
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| author | Hideyuki Mizuno Kuniyasu Saitoh Yusuke Hara Atsushi Ikeda |
| author_facet | Hideyuki Mizuno Kuniyasu Saitoh Yusuke Hara Atsushi Ikeda |
| author_sort | Hideyuki Mizuno |
| collection | DOAJ |
| description | Abstract Amorphous solids are diverse materials that take on various forms such as structural glasses, granular materials, foams, emulsions, and biological systems. Recent research has made significant progress in understanding non-phonon vibrational modes universally present in amorphous materials, which have been observed as excess vibrational modes over the Debye law, known as boson peak, as well as quasi-localized vibrational modes. These vibrational modes are crucial to explaining material properties of a wide range of amorphous materials, from “hard" solids like structural glasses to “soft" solids like foams and emulsions. However, we still lack a theoretical framework that can comprehensively explain them in a unified manner. Here, we propose a unified theory for viscoelasticity and sound damping which are significantly different between hard and soft amorphous solids but are ultimately determined by non-Debye scaling laws of the non-phonon vibrational modes. Our theory can explain acoustic properties of structural glasses, which have been measured experimentally with light, inelastic X-ray, and neutron scattering techniques, on one hand, and viscoelastic properties of foams and emulsions, which have been measured by various macrorheology and microrheology techniques, on the other. We thus provide a comprehensive explanation for these experimental measurements of two distinct types of amorphous solids. |
| format | Article |
| id | doaj-art-b8b4407821294f69912fdd1ade44a1fb |
| institution | Kabale University |
| issn | 2399-3650 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Physics |
| spelling | doaj-art-b8b4407821294f69912fdd1ade44a1fb2025-01-19T12:26:20ZengNature PortfolioCommunications Physics2399-36502025-01-018111110.1038/s42005-025-01933-5Unified study of viscoelasticity and sound damping in hard and soft amorphous solidsHideyuki Mizuno0Kuniyasu Saitoh1Yusuke Hara2Atsushi Ikeda3Graduate School of Arts and Sciences, The University of TokyoDepartment of Physics, Faculty of Science, Kyoto Sangyo UniversityGraduate School of Arts and Sciences, The University of TokyoGraduate School of Arts and Sciences, The University of TokyoAbstract Amorphous solids are diverse materials that take on various forms such as structural glasses, granular materials, foams, emulsions, and biological systems. Recent research has made significant progress in understanding non-phonon vibrational modes universally present in amorphous materials, which have been observed as excess vibrational modes over the Debye law, known as boson peak, as well as quasi-localized vibrational modes. These vibrational modes are crucial to explaining material properties of a wide range of amorphous materials, from “hard" solids like structural glasses to “soft" solids like foams and emulsions. However, we still lack a theoretical framework that can comprehensively explain them in a unified manner. Here, we propose a unified theory for viscoelasticity and sound damping which are significantly different between hard and soft amorphous solids but are ultimately determined by non-Debye scaling laws of the non-phonon vibrational modes. Our theory can explain acoustic properties of structural glasses, which have been measured experimentally with light, inelastic X-ray, and neutron scattering techniques, on one hand, and viscoelastic properties of foams and emulsions, which have been measured by various macrorheology and microrheology techniques, on the other. We thus provide a comprehensive explanation for these experimental measurements of two distinct types of amorphous solids.https://doi.org/10.1038/s42005-025-01933-5 |
| spellingShingle | Hideyuki Mizuno Kuniyasu Saitoh Yusuke Hara Atsushi Ikeda Unified study of viscoelasticity and sound damping in hard and soft amorphous solids Communications Physics |
| title | Unified study of viscoelasticity and sound damping in hard and soft amorphous solids |
| title_full | Unified study of viscoelasticity and sound damping in hard and soft amorphous solids |
| title_fullStr | Unified study of viscoelasticity and sound damping in hard and soft amorphous solids |
| title_full_unstemmed | Unified study of viscoelasticity and sound damping in hard and soft amorphous solids |
| title_short | Unified study of viscoelasticity and sound damping in hard and soft amorphous solids |
| title_sort | unified study of viscoelasticity and sound damping in hard and soft amorphous solids |
| url | https://doi.org/10.1038/s42005-025-01933-5 |
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