We report electrical transport through 60 base pairs of poly(dG)-poly(dC) DNA molecules. The DNA solution is dropped on two metal electrodes with the gap of 20 nm. The current-voltage characteristics measured between the electrodes exhibits clear staircases, which are reproducible over repeated measurements. The size of the observed staircases is consistent with the energy gap obtained from a tight binding calculation.
|Number of pages||3|
|Journal||Applied Physics Letters|
|Publication status||Published - 2002 Aug 5|
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)