Pressure variation of Luttinger liquid parameters in single wall carbon nanotubes networks
We measure electrical transport on networks of single wall nanotube of different origin as a function of temperature T, voltage V and pressure P. We observe Luttinger liquid (LL) behavior, a conductance ∝T<Superscript>α</Superscript> and a dynamic conductance ∝V<Superscript>α</Superscript>. We observe a sample dependent P variation of the α parameters, interpreted as Fermi level changes due to pressure induced charge transfer. We show how, through standard four-leads and crossed configuration methods, it is possible to determine α<Subscript>bulk</Subscript> and α<Subscript>end</Subscript>, respectively. We study and discuss the pressure and doping level dependences of the number of channels N, the LL parameter g and the intra-rope tube-tube coupling constant U within a phenomenological model. Copyright Springer 2008
Year of publication: |
2008
|
---|---|
Authors: | Morales, F. ; Monteverde, M. ; Núñez-Regueiro, M. |
Published in: |
The European Physical Journal B - Condensed Matter and Complex Systems. - Springer. - Vol. 65.2008, 4, p. 511-514
|
Publisher: |
Springer |
Subject: | 61.46.Fg Nanotubes | 62.50.-p High-pressure effects in solids and liquids |
Saved in:
Online Resource
Saved in favorites
Similar items by subject
-
Zhukovskii, Y. F., (2009)
-
Transverse elasticity of multi-walled carbon nanotubes
Dai, X. B., (2006)
-
Durandurdu, M., (2009)
- More ...
Similar items by person
-
Acha, C., (2003)
- More ...