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Nonlinearity exponent in low dimensional nanotubes and nanowires
U N NANDI, D CHAKRABORTY
Published in ELSEVIER SCIENCE BV
2013
Volume: 3
   
Pages: 84 - 90
Abstract
A scaling formalism is used to analyze non-Ohmic conductance-voltage data in nanowires of an isolated potassium manganese oxide K0.27MnO2·0.5H2O and a poly(3,4-ethylenedioxythiophene) (PEDOT) and nanotubes of conducting polypyrrole at different temperatures. This scaling analysis provides a single voltage scale for non-Ohmic conduction which scales with Ohmic conductance with an exponent xT, called nonlinearity exponent. A detailed analysis reveals that the onset exponents xT are different in different systems. Non-Ohmic conduction and the nonlinearity exponents in these low-dimensional nanostructures are analyzed within the framework of scaling approach and existing theoretical models. © 2013 The Authors.
About the journal
JournalData powered by TypesetResults in Physics
PublisherData powered by TypesetELSEVIER SCIENCE BV
ISSN2211-3797
Open AccessYes