Differential Conductance Fluctuation of Curved Nanographite Sheets in the Mesoscopic Regime
arXiv:0912.5258 · doi:10.1016/j.ssc.2007.12.005
Abstract
Excess conductance fluctuations with peculiar temperature-dependence from 1.4 to 250 K were observed in curved nano-graphite sheets with an electrode gap length of 300 and 450 nm, whereas the conductance fluctuation is greatly suppressed above 4.2 K when the electrode gap length increases to 800 and 1000 nm. The former is discussed in the context of the presence of a small energy bandgap in the nano-graphite sheets, while the latter is attributed to the crossover from coherent transport to diffusive transport regime.
12 pages, 3 figures
References in corpus (10)
- Electric Field Effect in Atomically Thin Carbon Films
- Energy Band Gap Engineering of Graphene Nanoribbons
- Energy Gaps in Graphene Nanoribbons
- Electronic States of Graphene Nanoribbons
- Asymmetry gap in the electronic band structure of bilayer graphene
- Strong suppression of weak (anti)localization in graphene
- Peculiar Width Dependence of the Electronic Property of Carbon Nanoribbons
- Disorder Induced Localized States in Graphene
- Robust Transport Properties in Graphene
- Low energy theory of disordered graphene