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

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...

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Veröffentlicht in:	Physical review letters 2020-09, Vol.125 (10), p.105501-105501, Article 105501
Hauptverfasser:	Sharma, Keshav, Costa, Nathalia L, Kim, Yoong Ahm, Muramatsu, Hiroyuki, Barbosa Neto, Newton M, Martins, Luiz G P, Kong, Jing, Paschoal, Alexandre Rocha, Araujo, Paulo T
Format:	Artikel
Sprache:	eng
Schlagworte:	Anharmonicity C band Carbon Gruneisen parameter Hydrostatic pressure Mechanical properties Modulus of elasticity Molecular chains Multi wall carbon nanotubes Raman spectra Resonance scattering
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