In Nano-Semiconductors: Devices and Techno- logy
- K. Iniewski
- CRC Press: Boca Raton,
The ratio of conductances through carbon-ring based molecules are calculated for various positions of source-drain electrode leads on the molecule. These ratios are usually integers the so-called magic numbers. We find that deviations of the magic number ratios are either zero or quadratic in ratios of tight-binding model parameters.