ISSN:
1572-9605
Keywords:
Josephson junctions
;
YBCO
;
grain boundary
;
MgO seed layer
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Physics
Notes:
Abstract A novel fabrication procedure of high critical temperature superconductor Josephson junctions (HTCSJJ) has been developed by a 90° rotation of YBa2Cu3O7−x c-axis around an in-plane direction, on the basis of concepts of the biepitaxial technique. YBa2Cu3O7−x grows oriented along (001) direction on a MgO seed layer deposited on a (110) SrTiO3 substrate and along (110) direction on the bare substrate. Josephson junctions of good quality were obtained exhibiting RSJ behavior and features characteristic of HTCSJJ phenomenology. Even if not uniform, in some samples, the nature of the critical currentI c is completely Josephson, as resulting from theI c dependence on the applied magnetic field. The maximum measuredI c R N value atT=4.2K is 2mV.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00728309
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