Studies of High-Tc Superconducting Films for High-Power Microwave Applications

摘要

During the period of this Grant (1994-97) the research program on 'Studies ofHigh-Tc Superconducting Films for High-Power Microwave Applications' focused on three areas: (1) Nonlinear microwave flux dynamics, (2) Nonlinear impedance of engineered Josephson junctions and the dynamics of Josephson vortices associated with the nonlinear impedance, and (3) Extension of the coupled grain model to include a distribution of Ic and Rn. During this period Nathan Belk completed his-Ph.D. thesis in the area of Nonlinear microwave flux dynamics. In this report, the progress made on each of these projects during the 1994--97 funding period is summarized.