The influence of a periodic modulation of the maximum Josephson current on the current-voltage characteristic of the Josephson device is studied in a simulation experiment. It is shown that the pair current locks to the frequency of its modulation, which leads to the appearance of constant voltage s
RF modulation of current steps in Josephson junctions in YBaCuO constrictions
โ Scribed by Thomas J. Witt
- Book ID
- 104356480
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 307 KB
- Volume
- 165-166
- Category
- Article
- ISSN
- 0921-4526
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โฆ Synopsis
Measurements of the modulation of current steps induced by radio-frequency (rf) radiation in constrictions in bulk YBaCuO samples agree with calculations based on the resistively-shunted junction model for single Josephson junctions. At temperatures near the critical temperature a particularly simple method is proposed to determine the value of the rf current Irf. lIP. VjJW
๐ SIMILAR VOLUMES
We study the normal state conductance and the Josephson current in a superconductor-2DEG-superconductor structure where the size/shape of the 2DEG-region can be modified by an additional side-gate electrode. The considered transport properties follow from the retarded Green function which we compute