Title :
Transport properties of YBCO/PBCO/YBCO junctions
Author :
Sawada, Y. ; Terai, H. ; Fujimaki, A. ; Takai, Y. ; Hayakawa, H.
Author_Institution :
Dept. of Electron., Nagoya Univ., Japan
fDate :
6/1/1995 12:00:00 AM
Abstract :
We studied on the transport properties of edge-type YBCO/PBCO/YBCO junctions. They showed clear Josephson characteristics with I/sub c/R/sub n/ products of a few mV. The experimental results revealed that normal-state characteristics were dominated by the tunneling via localized states. Besides, taking account of constant I/sub c/R/sub n/ products, we could consider the transport mechanism of supercurrent as the resonant tunneling.<>
Keywords :
Josephson effect; barium compounds; high-temperature superconductors; praseodymium compounds; yttrium compounds; Josephson characteristics; YBaCuO-PrBaCuO-YBaCuO; critical current normal resistance products; edge-type YBCO/PBCO/YBCO junctions; localized states; normal-state; resonant tunneling; supercurrent; transport properties; tunneling; Crystalline materials; Fabrication; Gold; Ion beams; Josephson junctions; Nonhomogeneous media; Resonant tunneling devices; Scanning electron microscopy; Sputter etching; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
