Spectroscopy of electron-phonon interaction in point contacts with a barrier layer
Kulik I.O. , Moskalets M. V., Shekhter R.I. , Yanson I. K.
It is shown that the spectrum of electron-phonon interaction in metallic point contacts with an extremely small inelastic relaxation length, λ€ < d, can be analyzed if the transmission D of the barrier layer in the point contact is low: if it satisfies the relation Dd < /, (/, is the elastic scattering length of the electron in the metal and d is the contact size).