✦ LIBER ✦
Microwave response of YBaCuO/MgO/Pb planar josephson tunnel junctions
✍ Scribed by I. Iguchi; Z. Wen; M. Furuyama
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 170 KB
- Volume
- 165-166
- Category
- Article
- ISSN
- 0921-4526
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✦ Synopsis
Microwave response of YBaCuO (YBCO)/MgO/Pb planar Josephson tunnel junctions fabricated by an in situ deposition technique is presented. The observed Josephson critical current is 20 -4OOuA.
The current-voltage characterisitcs under microwave irradiation of 9GHz yield the Shapiro steps at integer multiples of hf/2e where f is the microwave frequency. Dependence of the Shapiro step height on the microwave voltage amplitude is consistent with that of the conventional theory. A series of subharmonic steps at half integer multiples of hf/2e are also observable, although their structures are weak.