1 research outputs found
Josephson effect in a microbridge
We report DC Josephson effects observed in a microbridge prepared from an
individual crystalline growth domain of thin film. Josephson effects
were observed by periodic voltage modulations under external magnetic field
with the expected periodicity and by the temperature dependence
of the Josephson critical current . The shape of was
found to be asymmetric, as it is expected for microbridges. The dependence
follows the Ambegaokar-Baratoff relation, which is unexpected for
microbridges. Features in the dynamical resistance curves were attributed to
the periodic motion of Abricosov vortices within the microbridge.Comment: 12 pages, 5 figures, submitted to Physica