Experimental identification of topological defects in 2D colloidal glass
Abstract Topological defects are singularities within a field that cannot be removed by continuous transformations. The definition of these irregularities requires an ordered reference configuration, calling into question whether they exist in disordered materials, such as glasses. However, recent w...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-54857-z |
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| _version_ | 1850075851374198784 |
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| author | Vinay Vaibhav Arabinda Bera Amelia C. Y. Liu Matteo Baggioli Peter Keim Alessio Zaccone |
| author_facet | Vinay Vaibhav Arabinda Bera Amelia C. Y. Liu Matteo Baggioli Peter Keim Alessio Zaccone |
| author_sort | Vinay Vaibhav |
| collection | DOAJ |
| description | Abstract Topological defects are singularities within a field that cannot be removed by continuous transformations. The definition of these irregularities requires an ordered reference configuration, calling into question whether they exist in disordered materials, such as glasses. However, recent work suggests that well-defined topological defects emerge in the dynamics of glasses, even if they are not evident in the static configuration. In this study, we reveal the presence of topological defects in the vibrational eigenspace of a two-dimensional experimental colloidal glass. These defects strongly correlate with the vibrational features and spatially correlate with each other and structural “soft spots”, more prone to plastic flow. This work experimentally confirms the existence of topological defects in disordered systems revealing the complex interplay between topology, disorder, and dynamics. |
| format | Article |
| id | doaj-art-756bcefee01f449ebd8988294dc4b1bc |
| institution | DOAJ |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-756bcefee01f449ebd8988294dc4b1bc2025-08-20T02:46:12ZengNature PortfolioNature Communications2041-17232025-01-0116111010.1038/s41467-024-54857-zExperimental identification of topological defects in 2D colloidal glassVinay Vaibhav0Arabinda Bera1Amelia C. Y. Liu2Matteo Baggioli3Peter Keim4Alessio Zaccone5Department of Physics “A. Pontremoli”, University of MilanDepartment of Physics “A. Pontremoli”, University of MilanSchool of Physics and Astronomy, Monash UniversityWilczek Quantum Center, School of Physics and Astronomy, Shanghai Jiao Tong UniversityInstitute for Experimental Physics of Condensed Matter, Heinrich-Heine-Universität DüsseldorfDepartment of Physics “A. Pontremoli”, University of MilanAbstract Topological defects are singularities within a field that cannot be removed by continuous transformations. The definition of these irregularities requires an ordered reference configuration, calling into question whether they exist in disordered materials, such as glasses. However, recent work suggests that well-defined topological defects emerge in the dynamics of glasses, even if they are not evident in the static configuration. In this study, we reveal the presence of topological defects in the vibrational eigenspace of a two-dimensional experimental colloidal glass. These defects strongly correlate with the vibrational features and spatially correlate with each other and structural “soft spots”, more prone to plastic flow. This work experimentally confirms the existence of topological defects in disordered systems revealing the complex interplay between topology, disorder, and dynamics.https://doi.org/10.1038/s41467-024-54857-z |
| spellingShingle | Vinay Vaibhav Arabinda Bera Amelia C. Y. Liu Matteo Baggioli Peter Keim Alessio Zaccone Experimental identification of topological defects in 2D colloidal glass Nature Communications |
| title | Experimental identification of topological defects in 2D colloidal glass |
| title_full | Experimental identification of topological defects in 2D colloidal glass |
| title_fullStr | Experimental identification of topological defects in 2D colloidal glass |
| title_full_unstemmed | Experimental identification of topological defects in 2D colloidal glass |
| title_short | Experimental identification of topological defects in 2D colloidal glass |
| title_sort | experimental identification of topological defects in 2d colloidal glass |
| url | https://doi.org/10.1038/s41467-024-54857-z |
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