Image potential between closely separated quantum-size film and a metal

By theoretical analysis we have demonstrated that for degenerate films with a discrete electron energy spectrum (quantum-size (QS) films) the thickness dependences for the potential barrier height h(L) between a closely spaced QS film and a metal is quasi-oscillatory. This non-monotonic dependence of h(L) on the thickness d of the QS film, as well as the non-monotonic dependence of the main bulk characteristics of the QS film, can determine the dimensional dependence of the tunnel characteristics for spatially limited structures.