Superconductivity of interface layer at contact between normal metal and high temperature superconductor

In this research, it is shown that there are the necessary physical conditions to originate the returning superconductivity in the thin interface layer at the contact between the normal metal and the high temperature superconductor (N-S contact). The influences by the temperature T, magnetic field H and direct current I on the electrical resistance RG of the thin interface layer G in the multilayered system N-G-S, where N can be one the normal metal layers of Argentum (Ag), Indium (In), Gallium-Indium (Ga-50%In), G is the thin interface layer, S is the high temperature superconductor (HTS) layer of YBa2Cu3O7-x, are researched experimentally.