Submicron structuring of YBa2Cu3O7 thin films with electron beam lithography

Abstract
Thin films of high‐temperature superconducting YBaCuO deposited by dc‐sputtering on SrTiO3 substrates are structured by electron beam lithography on a submicron scale. Details of the technology processes involved are presented. The sudden transition of structures below 1 μm into the semiconducting state is discussed.