Microwave response of Bi- and Tl-oxide superconductors

The measurement of the nonbolometric microwave response of a superconducting film may provide a method of detecting the coexistence of different phases of the film. Experimental results suggest that increased granularity of a film leads to a larger nonbolometric effect. The main mechanism of the nonbolometric microwave response is thought to be due to the interaction between microwave radiation and the intergranular weak links in the film. >