Abstract
Granular Al films have been measured in a microwave cavity at 9.4 GHz together with their dc resistance, R (T). The change in resonant frequency is proportional to the number of superconducting electron pairs which is finite above the temperature T c P, where R (T) Col O. Microwave loss has been identified which appears to be specific to granular materials and vanishes only well below T c p. This is shown to be due to normal conduction between grains, which upon cooling becomes progressively more Josephson-like.
| Original language | English |
|---|---|
| Title of host publication | Properties of Perovskites and Other Oxides |
| Publisher | World Scientific Publishing Co. |
| Pages | 546-835 |
| Number of pages | 290 |
| ISBN (Electronic) | 9789814293365 |
| ISBN (Print) | 9789814293358 |
| DOIs | |
| State | Published - 1 Jan 2010 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 1980 The American Physical Society.