Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1595778 | Solid State Communications | 2008 | 5 Pages |
Abstract
Excess conductance fluctuations with peculiar temperature dependence from 1.4 to 250 K were observed in curved nanographite sheets with electrode gap lengths of 300 and 450 nm, whereas the conductance fluctuation is greatly suppressed above 4.2 K when the electrode gap lengths increase to 800 and 1000 nm. The former is discussed in the context of the presence of a small energy bandgap in the nanographite sheets, while the latter is attributed to the crossover from the coherent transport to diffusive transport regime.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Haomin Wang, Catherine Choong, Jun Zhang, Kie Leong Teo, Yihong Wu,