We formulate a theory which gives a quantum mechanical description of the effects of collisions by gas atoms on the electrical transport properties of nanostructures. Collisions of gas atoms transfer energy to the structure, resulting in phonon excitation. From the scattering amplitude we estimate the average additional number of phonons due to these collisions. We also calculate the electron-phonon matrix element for various structures; this allows computation of the lifetime of electrons via the self-energy.
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - 15 Jul 2003|