Electrical resistivity of graphitized ultra-disperse diamond and onion-like carbon

Here we present the result of measurements of electrical resistivity of ultra-disperse diamonds (UDD) with different graphitization degrees and onion-like carbon (OLC) prepared by vacuum annealing of UDD samples at various fixed temperatures. Intermediate samples contain particles with a diamond cor...

Full description

Saved in:
Bibliographic Details
Published in:Chemical physics letters 2001-03, Vol.336 (5), p.397-404
Main Authors: Kuznetsov, V.L., Butenko, Yu.V., Chuvilin, A.L., Romanenko, A.I., Okotrub, A.V.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Here we present the result of measurements of electrical resistivity of ultra-disperse diamonds (UDD) with different graphitization degrees and onion-like carbon (OLC) prepared by vacuum annealing of UDD samples at various fixed temperatures. Intermediate samples contain particles with a diamond core covered by closed curved graphitic shells. The temperature dependence of electrical resistivity ρ( T) of these structures is characteristic for the systems with localized electrons and variable hopping-length hopping conductivity (VHLHC). The data on sample resistance are discussed in terms of the variation of dimensionality of conductivity and changing the number of defects in the system.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(01)00135-X