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C-axis I-V characteristics in highly c-axis-oriented (Bi,Pb)2Sr2Ca2Cu3Ox silver-sheathed tapes

Sun, Yuping, Xu, Guoyang, Jiang, Liudi, Song, Wenhai, Wan, Xinggong, Du, Jiaju, Duan, Zhenzhong and Zhou, Lian (1998) C-axis I-V characteristics in highly c-axis-oriented (Bi,Pb)2Sr2Ca2Cu3Ox silver-sheathed tapes Physica Status Solidi A-Applied Research, 168, (2), pp. 479-485. (doi:10.1002/(SICI)1521-396X(199808)168:2<479::AID-PSSA479>3.0.CO;2-O).

Record type: Article


We have measured c-axis I-V characteristics of highly c-axis-oriented (Bi,Pb)2Sr2Ca2Cu3Ox silver-sheathed tapes (Bi2223/Ag) in the field H 0.5 T near Tc (80 to 110 K). The Josephson junction effect is observed. In each I-V curve a voltage jump V0 is clearly found which may correspond to the transition from states with Cooper tunneling to states with quasi-particle tunneling. This implies the Josephson coupling between the grains or between the CuO2 tri-layers in Bi2223/Ag tapes along the c-direction. The temperature dependence of the superconducting gap (T) can be successfully scaled to that obtained from BCS theory. The gap does not depend much on a magnetic field of H 0.5 T for H c. The voltage jumps observed in the experiments are not as steep as in a single SIS junction, which may originate from the variety of junctions in Bi2223/Ag tapes or the thermal fluctuation.

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Published date: 1998


Local EPrints ID: 23565
ISSN: 0031-8965
PURE UUID: eb9487fb-0097-41b4-93a9-ba3d6cd9273b

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Date deposited: 01 Feb 2007
Last modified: 17 Jul 2017 16:17

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Author: Yuping Sun
Author: Guoyang Xu
Author: Liudi Jiang
Author: Wenhai Song
Author: Xinggong Wan
Author: Jiaju Du
Author: Zhenzhong Duan
Author: Lian Zhou

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