Current-Voltage Characteristics of YBa 2 Cu 3 O y /La 0.7 Ca 0.3 MnO z /YBa 2 Cu 3 O y Trilayered-Type Junctions

YBa 2 Cu 3 O y (superconductor)/La 0.7 Ca 0.3 MnO z (magnetic material)/YBa 2 Cu 3 O y (superconductor) trilayered-type junctions were prepared on MgO(100) single-crystal substrates, and the current-voltage characteristics were examined. The top and bottom YBa 2 Cu 3 O y layers were 200 nm thick, an...

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Veröffentlicht in:Japanese Journal of Applied Physics 1990-12, Vol.29 (12A), p.L2219
Hauptverfasser: Kasai, Masahiro, Ohno, Toshiyuki, Kanke, Yoko, Kozono, Yuzoo, Hanazono, Masanobu, Sugita, Yutaka
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container_end_page
container_issue 12A
container_start_page L2219
container_title Japanese Journal of Applied Physics
container_volume 29
creator Kasai, Masahiro
Ohno, Toshiyuki
Kanke, Yoko
Kozono, Yuzoo
Hanazono, Masanobu
Sugita, Yutaka
description YBa 2 Cu 3 O y (superconductor)/La 0.7 Ca 0.3 MnO z (magnetic material)/YBa 2 Cu 3 O y (superconductor) trilayered-type junctions were prepared on MgO(100) single-crystal substrates, and the current-voltage characteristics were examined. The top and bottom YBa 2 Cu 3 O y layers were 200 nm thick, and the La 0.7 Ca 0.3 MnO z layer was 20, 30, 50 or 100 nm thick. A supercurrent was observed through all the La 0.7 Ca 0.3 MnO z layers, even the thickest one. Further investigation showed that a supercurrent could he observed through the 500-nm barrier layer.
doi_str_mv 10.1143/JJAP.29.L2219
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title Current-Voltage Characteristics of YBa 2 Cu 3 O y /La 0.7 Ca 0.3 MnO z /YBa 2 Cu 3 O y Trilayered-Type Junctions
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