Reconstruction of the “phase separation – ordering” type and specific heat in carbon nanotubes

Journal Article · Fri Nov 14 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4898992· OSTI ID:22390440

Ponomarev, Alexander N., E-mail: [e-mail], E-mail: [e-mail]; Egorushkin, Valery E., E-mail: [e-mail], E-mail: [e-mail]; Bobenko, Nadezda G., E-mail: [e-mail] ^[1]; Melnikova, Natalia V., E-mail: [e-mail] ^[2]

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1. Institute of Strength Physics and Material Science SB RAS, Tomsk, 634055 (Russian Federation)
2. V.D. Kuznetsov Siberian Physical Technical Institute of TSU, Tomsk, 634050 (Russian Federation)

The low-temperature behavior of the specific heat in disordered nanotubes strongly depends on structure changes and was not explained by the phonon contribution. Expression for electronic specific heat was carried out taking into account the multiple elastic scattering of electrons on impurities and structural inhomogeneities of short-range order type, it includes dependence on diameter of nanotube, concentration of impurities, parameters of short-range order (structural heterogeneity) and temperature. Anomalous low-temperature behavior of the specific heat of disordered CNT is shown to have electronic nature and may be associated with the electrons that are involved in restructuring.

• OSTI ID: 22390440
• Journal Information: AIP Conference Proceedings, Vol. 1623, Issue 1; Conference: International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk (Russian Federation), 3-5 Sep 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
CARBON NANOTUBES
CONCENTRATION RATIO
CRYSTAL STRUCTURE
ELASTIC SCATTERING
ELECTRON DIFFRACTION
ELECTRONIC SPECIFIC HEAT
ELECTRONS
IMPURITIES
PHONONS
TEMPERATURE DEPENDENCE