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Electrophysical properties of multiwalled carbon nanotubes with various diameters
Author(s) -
Romanenko A. I.,
Anikeeva O. B.,
Buryakov T. I.,
Tkachev E. N.,
Zhdanov K. R.,
Kuznetsov V. L.,
Mazov I. N.,
Usoltseva A. N.
Publication year - 2009
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200982267
Subject(s) - electron , carbon nanotube , materials science , conductivity , amorphous solid , carbon fibers , quantum , condensed matter physics , nanotechnology , composite material , physics , chemistry , crystallography , composite number , quantum mechanics
We have investigated temperature σ ( T ) and magnetic field σ ( B ) dependences of the conductivity σ of multiwalled carbon nanotubes (MWNTs) with different average outer diameter $\overline d $ . From the experimental data we have separated the quantum corrections to σ ( T ) and σ ( B ). We have discovered that only quantum corrections for interaction electrons (QCIE) to σ ( B ) take place. It is associated to the absence of the bulk formations of amorphous carbon in produced MWNTs. From the data of QCIE we have estimated the constant of electron–electron interaction λ which is negative (attraction between electrons) and gradually falling with decrease in MWNTs $\overline d $ . Influence of defectiveness and structure of MWNTs on electrophysical properties is discussed.