TY - JOUR
T1 - Proximity effect in high-Tc oxide superconductors
AU - Tachiki, M.
AU - Takahashi, S.
N1 - Funding Information:
The authors would like to thank Professor H. Mat-sumoto and Dr. T. Koyama for helpful discussions. This work was partially supported by a Grant-in-Aid from the Ministry of Education, Science and Culture, Japan.
PY - 1992/2/15
Y1 - 1992/2/15
N2 - The proximity effect in SNS (superconductor-normal conductor-superconductor) junctions composed of the oxides with isomorphic crystal structures is theoretically studied by using a simple model in which the S and N layers have similar electronic structures, and the superconducting pairing interaction works even in the N layer. The proximity effect is enhanced by the pairing interaction and the superconducting pair amplitude is connected between the S layers through the thick N layer which is primarily not superconductive due to a small number of holes. The proximity effects is almost unaffected by elastic impurity scatterings at low temperatures.
AB - The proximity effect in SNS (superconductor-normal conductor-superconductor) junctions composed of the oxides with isomorphic crystal structures is theoretically studied by using a simple model in which the S and N layers have similar electronic structures, and the superconducting pairing interaction works even in the N layer. The proximity effect is enhanced by the pairing interaction and the superconducting pair amplitude is connected between the S layers through the thick N layer which is primarily not superconductive due to a small number of holes. The proximity effects is almost unaffected by elastic impurity scatterings at low temperatures.
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U2 - 10.1016/0921-4534(92)90932-3
DO - 10.1016/0921-4534(92)90932-3
M3 - Article
AN - SCOPUS:0026818389
VL - 191
SP - 363
EP - 370
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 3-4
ER -