Fabrication of nanosized superconductor structures with a critical temperature exceeding 100 K

The technology of preparation of layers (up to 100 nm thick) of a superconductor of composition (Bi,Pb)₂Sr₂Ca₂Cu₃O₁₀ with a superconducting transition temperature above 100 K is considered. It is shown that, upon preparation of thin layers, the critical condition reduces to the maintenance of a stoichiometric composition on the surface of the substrate in the process of magnetron-sputtering deposition and the formation of the crystal lattice of the superconductor at a high temperature.