FABRICATION OF YBACUO NONSUPERCONDUCTIVE-YBACUO/YBACUO COPLANAR JOSEPHSON-JUNCTION BY FOCUSED ION-BEAM
スポンサーリンク
概要
- 論文の詳細を見る
Thin film of YBa(2)Cu3O(7-delta) grown on the MgO substrate damaged by a focused ion beam loses superconductivity due to an abnormal growth. We have fabricated a YBa2Cu3O7-delta co-planar Josephson junction whose coupling region is a nonsuperconductive YBa2Cu3O7-delta grown on an MgO substrate damaged locally by a scan of a focused ion beam. The I-V characteristic of the junction behaves like a flux how type. At temperatures from 4.2K to 60K, Shapiro steps were observed for the junctions in which the length of the coupling region was from 0.2 mu m to 1 mu m. The highest IcRn product of the junction was 5.0mV. The critical current density decreased exponentially with the junction length. It is considered that nonsuperconductive YBa2CU3O7-delta grown on the damaged substrate works as a normal layer in an S-N-S junction. Also the junction responded to the magnetic field and behaved like asymmetric de-SQUID.
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INCの論文
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | 論文
- Preparation and Characterization of Nanofiber Nonwoven Textile for Electromagnetic Wave Shielding
- Statistical characteristics of atmospheric phase fluctuations observed by a VLBI system using a beacon wave from a geostationary satellite
- Cross-Talk Suppression in High-Density Printed Circuit Boards Using Magnetic Composite Filled in Spacing Between Signal Lines
- Development of an Electromagnetic Wave Shielding Textile by Electroless Ni-Based Alloy Plating
- Y-BA-CU-O THIN-FILMS BY EVAPORATING THE 3 ELEMENTS USING RESISTIVE HEATING