학술논문
Differential Conductance Fluctuation of Curved Nanographite Sheets in the Mesoscopic Regime
Document Type
Working Paper
Source
Solid State Comm. 145, 341-345, 2008
Subject
Language
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.
Comment: 12 pages, 3 figures
Comment: 12 pages, 3 figures