Abstract:

The anisotropy of optical polarizability for ADN fragments has been experimentally measured by Stellwagen. In this workit is developed a theoretical method which allows adjust its experimental results. The method is based on the approximation of punctual coupled dipoles. This approximation consists in replacing the molecule by an aggregate of interactive spheres, each one of them behaves itself as a punctual dipole in presence of an external electric field. Because of simplicity, the external field is considered homogeneous, condition that restrains the application of method to the case of fragments small compared to the wavelength of the polarized light.temperature region, Variable Range Hopping (VRH) was established as a predominant electronic transport mechanism with the exception for the lowest concentration of Boron. We present a model called “Diffusional” from which the hopping parameters were obtained and compared with the parameters calculated from the percolation theory. A numerical correlation factor of the hopping parameters was also calculated