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

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.
Authors:
; ;  [1] ;  [2]
  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)
Publication Date:
OSTI Identifier:
22390440
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1623; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; CARBON NANOTUBES; CONCENTRATION RATIO; CRYSTAL STRUCTURE; ELASTIC SCATTERING; ELECTRON DIFFRACTION; ELECTRONIC SPECIFIC HEAT; ELECTRONS; IMPURITIES; PHONONS; TEMPERATURE DEPENDENCE