Yurasov

 It is of great interest to analyze the limit of specific resistance of disordered alloys both for massive models and for thin films and small particles in porous medium, and also to examine its influence on high-frequency conductivity. This work is dedicated to solution of these problems. All calculations are carried out for the model of metal as a model of Fermi gas of electrons o condition that the free path is equal to the average bond radius. The authors obtained formulas for static and dynamic conductivity of thin films and small particles in porous medium which can be applied both for nonmagnetic and magnetic alloys. The authors stated the field of applicability of the obtained formulas. They proposed and justified a hypothesis about reasons of the quantum limit existence for conductivity of alloys which is independent of magnetic order.