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2011 | 9 | 2 | 519-529
Tytuł artykułu

Resistance simulations for junctions of SW and MW carbon nanotubes with various metal substrates

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
This theoretical study focuses on junctions between the carbon nanotubes (CNTs) and contacting metallic elements of a nanocircuit. Numerical simulations on the conductance and resistance of these contacts have been performed using the multiple scattering theory and the effective media cluster approach. Two models for CNT-metal contacts have been considered in this paper: a) first principles “liquid metal” model and b) semi-empirical model of “effective bonds” based on Landauer notions on ballistic conductivity. Within the latter, which is a more adequate description of chirality effects, we have simulated both single-wall (SW) and multi-wall (MW) CNTs with different morphology. Results of calculations on resistance for different CNT-Me contacts look quantitatively realistic (from several to hundreds kOhm, depending on chirality, diameter and thickness of MW CNT). The inter-wall transparency coefficient for MW CNT has been also simulated, as an indicator of possible ‘radial current’ losses.
Wydawca

Czasopismo
Rocznik
Tom
9
Numer
2
Strony
519-529
Opis fizyczny
Daty
wydano
2011-04-01
online
2011-02-20
Twórcy
  • Institute of Solid State Physics, University of Latvia, Riga, Latvia, quantzh@latnet.lv
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-010-0086-9
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