Effect of phonons on the ac conductance of molecular junctions

Abstract

Abstract We theoretically examine the effect of a single phonon mode on the structure of the frequency dependence of the ac conductance of molecular junctions, in the linear response regime. The conductance is enhanced (suppressed) by the electron-phonon interaction when the chemical potential is below (above) the energy of the electronic state on the molecule. PACS numbers: 71.38.-k, 73.21.La, 73.23.-b