Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1547854 | Physica E: Low-dimensional Systems and Nanostructures | 2006 | 4 Pages |
Abstract
In the present work, the effect of a central electrical impurity (dipole) on quantum conductance in simple cubic nano-wires (SCNW) has been investigated in the tight-binding (TB) approach and assuming nearest-neighbor interaction by Green's function (GF) method. We illustrate that in the presence of electrical impurity (external potential), the number of channels and energy band of nano-wire decrease. The variation of the energy band and the number of channels depend on the position and amount of the electrical charge (dipole moment) in the SCNW.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Mohammad Mardaani, Hossein Mardaani,