1. National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China 2. Department of Material Science and Chemical Engineering, Yanshan Univeristy, Qinhuangdao 066004, China
Abstract:
YBa2Cu3O7-δ and Tl2Ba2CaCu2O8 thin films for microwave filters were synthesized by pulsed laser deposition and the two-step thalliation process. Substrate quality requirements and the relation of thin film morphology, microstructure with microwave surface resistance were discussed.