Open AccessQuasi one dimensional transport in individual electrospun composite nanofibers
Author(s) -
Asaf Av,
Bei Wang,
Shan-Gui Zhou,
Vitaliy Datsyuk,
Svitlana Trotsenko,
Niels Grabbert,
Ha-Duong Ngo
Publication year - 2014
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.4862168
Subject(s) - materials science , carbon nanotube , nanofiber , exponent , conductance , nanotube , power law , quantum tunnelling , condensed matter physics , atmospheric temperature range , nanotechnology , carbon nanofiber , biasing , composite number , voltage , composite material , thermodynamics , optoelectronics , physics , philosophy , linguistics , statistics , mathematics , quantum mechanics
We present results of transport measurements of individual suspended electrospun nanofibers Poly(methyl methacrylate)-multiwalled carbon nanotubes. The nanofiber is comprised of highly aligned consecutive multiwalled carbon nanotubes. We have confirmed that at the range temperature from room temperature down to ∼60 K, the conductance behaves as power-law of temperature with an exponent of α ∼ 2.9−10.2. The current also behaves as power law of voltage with an exponent of β ∼ 2.3−8.6. The power-law behavior is a footprint for one dimensional transport. The possible models of this confined system are discussed. Using the model of Luttinger liquid states in series, we calculated the exponent for tunneling into the bulk of a single multiwalled carbon nanotube αbulk ∼ 0.06 which agrees with theoretical predictions
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