TY - JOUR
T1 - Anomalous interface resistance between oxide superconductors and noble metals
AU - Tsai, J. S.
AU - Takeuchi, I.
AU - Tsuge, H.
AU - Matsukura, N.
AU - Miura, S.
N1 - Funding Information:
This work was supported by NEDO under the management of FED.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1990
Y1 - 1990
N2 - Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O epitaxial films were cleaved in the stream of evaporating noble metals such as Au, Ag and Pt to form well defined SN interfaces. All of interfaces showed a contact resistance in the range of 10−9 Ωm, which is much higher than that of metal/metal interfaces. Anisotropy in contact resistance was observed with Rc ‖ /Rc⊥~15. A pin-hole like phenomenological interface model is given. Several microscopic origins of a such interfacial barrier are discussed. Josephson current was not observed in SNS' junctions made on these interfaces. This is attributed to the small Josephson energy limited by the pin-hole like channels.
AB - Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O epitaxial films were cleaved in the stream of evaporating noble metals such as Au, Ag and Pt to form well defined SN interfaces. All of interfaces showed a contact resistance in the range of 10−9 Ωm, which is much higher than that of metal/metal interfaces. Anisotropy in contact resistance was observed with Rc ‖ /Rc⊥~15. A pin-hole like phenomenological interface model is given. Several microscopic origins of a such interfacial barrier are discussed. Josephson current was not observed in SNS' junctions made on these interfaces. This is attributed to the small Josephson energy limited by the pin-hole like channels.
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U2 - 10.1016/S0921-4526(09)80399-2
DO - 10.1016/S0921-4526(09)80399-2
M3 - Article
AN - SCOPUS:0025466179
SN - 0921-4526
VL - 165-166
SP - 1627
EP - 1628
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
ER -