The work function in the case of thin metallic layers

摘要

The investigations of electrons collective excitations on metal surface is important for deeper understanding both the metal properties and the response of the metal to an accident electromagnetic radiation. It is a matter of common knowledge that the properties of metal can be substantially modified as its physical dimension are reduced to the nanoscale. In such case a lot of experiments have shown the variation of work function, but there still exist the discrepancy between them and theoretical results. It seems to be really important to push the theory just a bit further. Here the work function is exactly defined function of the electron density and wave number what allows to take into account an influence of the uncertainty principle in obtained results.