Anharmonic effects control interaction of carbyne confined in carbon nanotubes shaping their vibrational properties
- Author(s)
- Emil Parth, Andrea Corradini, Weili Cui, Davide Romanin, Christin Schuster, Clara Freytag, Lei Shi, Kazuhiro Yanagi, Matteo Calandra, Thomas Pichler
- Abstract
The resonant Raman response is due to electronic and vibrational excitations. Interestingly, the resonant Raman fingerprint of confined carbyne is highly unconventional and comes concomitant to several new features which can neither be assigned to the hosting tube, nor to the linear carbon chain a.k.a carbyne. This identifies the tube-chain system as a true hybrid structure in which the spectrum is usually driven by strong modifications in the electronic excitations via charge transfer. Surprisingly, we show that the electronic structure results from those of the two isolated systems and the large spectral modifications are solely due to the strong anharmonic interactions between the tube and the chain. Our work establishes confined carbyne as the ideal test system to probe strong anharmonicity in one dimension and its huge implications on the resonant Raman response.
- Organisation(s)
- Electronic Properties of Materials
- External organisation(s)
- Università degli Studi di Trento, Sun Yat-sen University, Université Paris Saclay, Tokyo Metropolitan University
- Journal
- Nature Communications
- Volume
- 16
- No. of pages
- 9
- ISSN
- 2041-1723
- DOI
- https://doi.org/10.21203/rs.3.rs-5247129/v1
- Publication date
- 10-2024
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103009 Solid state physics, 103018 Materials physics, 103020 Surface physics
- Keywords
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/bd4d8827-ba19-4470-ad34-89d8eca5dd09