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Anharmonicity and Universal Response of Linear Carbon Chain Mechanical Properties under Hydrostatic Pressure

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dc.contributor Massachusetts Institute of Technology. Department of Physics
dc.contributor Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
dc.creator Sharma, Keshav
dc.creator Costa, Nathalia L.
dc.creator Kim, Yoong Ahm
dc.creator Muramatsu, Hiroyuki
dc.creator Barbosa Neto, Newton M.
dc.creator Martins, Luiz G. P.
dc.creator Kong, Jing
dc.creator Paschoal, Alexandre Rocha
dc.creator Araujo, Paulo T.
dc.date 2022-07-20T16:16:34Z
dc.date 2021-09-20T18:21:44Z
dc.date 2022-07-20T16:16:34Z
dc.date 2020
dc.date 2021-01-08T18:41:44Z
dc.date.accessioned 2023-02-17T20:00:17Z
dc.date.available 2023-02-17T20:00:17Z
dc.identifier https://hdl.handle.net/1721.1/132299.2
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/242079
dc.description © 2020 American Physical Society. Isolated linear carbon chains (LCCs) encapsulated by multiwalled carbon nanotubes are studied under hydrostatic pressure (P) via resonance Raman scattering. The LCCs' spectroscopic signature C band around 1850 cm-1 softens linearly with increasing P. A simple anharmonic force-constant model not only describes such softening but also shows that the LCCs' Young's modulus (E), Grüneisen parameter (γ), and strain ( µ) follow universal P-1 and P2 laws, respectively. In particular, γ also presents a unified behavior for all LCCs. To the best of our knowledge, these are the first results reported on such isolated systems and the first work to explore universal P-dependent responses for LCCs' E, µ, and γ.
dc.format application/octet-stream
dc.language en
dc.publisher American Physical Society (APS)
dc.relation 10.1103/PhysRevLett.125.105501
dc.relation Physical Review Letters
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.source APS
dc.title Anharmonicity and Universal Response of Linear Carbon Chain Mechanical Properties under Hydrostatic Pressure
dc.type Article
dc.type http://purl.org/eprint/type/JournalArticle


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