Martens, HCF and Reedijk, JA and Brom, HB and de Leeuw, DM and Menon, R (2001) Metallic state in disordered quasi-one-dimensional conductors. In: Physical Review B, 6307 (7). 63 073203-1.
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The metallic state in conjugated polymers and single-walled carbon nanotubes: is studied by dielectric spectroscopy (8-600 GHz). We have found an intriguing correlation between scattering time (tau) and plasma frequency (omega (p)):tau (proportional to)omega (-1.3)(p). This relation conflicts with the usually applied models that only consider disorder. Based on the observed parallels with doped semiconductors, we argue that the interchain coupling t(perpendicular to) plays a role comparable to the doping level and that the unusual free-carrier dynamics in the metallic state can be explained when including the role of t(perpendicular to) in the conventional models.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to American Physical Society.|
|Keywords:||Insulator-Transition;Optical-Properties;Charge-Transport;Carbon Nanotubes;Conductivity; Reflectance;Polypyrrole;Pb|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||10 Feb 2010 06:49|
|Last Modified:||19 Sep 2010 04:55|
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