ArticleNature communications2025
Universal vibrational anharmonicity in carbyne-like materials.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Anharmonic effects control interaction of carbyne confined in carbon nanotubes shaping their vibrational properties.Nature communications · 2025Article
- Further insights into the thermodynamics of linear carbon chains for temperatures ranging from 13 to 300 K.Beilstein journal of nanotechnology · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
Carbyne, an infinite linear chain of carbon atoms, is the truly one-dimensional allotrope of carbon. While ideal carbyne and its fundamental properties have remained elusive, carbyne-like materials such as carbyne chains confined inside carbon nanotubes are available for study. Here, we probe the longitudinal optical phonon (C mode) of confined carbyne chains by Raman spectroscopy up to the third overtone. We observe a strong vibrational anharmonicity that increases with decreasing C mode frequency, reaching up to 8% for the third overtone. Moreover, we find that the relation between vibrational anharmonicity and C mode frequency is universal to carbyne-like materials, including ideal carbyne. This establishes experimentally that carbyne and related materials have pronounced anharmonic potential landscapes which must be included in the theoretical description of their structure and properties.
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