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, 168, (2), 479-485. (doi:10.1002/(SICI)1521-396X(199808)168:2<479::AID-PSSA479>3.0.CO;2-O).
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Description/Abstract
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.
| Item Type: | Article |
|---|---|
| ISSNs: | 0031-8965 (print) |
| Related URLs: | |
| Subjects: | T Technology > TN Mining engineering. Metallurgy Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences |
| Item ID: | 23565 |
| Date Deposited: | 01 Feb 2007 |
| Last Modified: | 02 Mar 2012 12:26 |
| Contributors: | Sun, Yuping (Author) Xu, Guoyang (Author) Jiang, Liudi (Author) Song, Wenhai (Author) Wan, Xinggong (Author) Du, Jiaju (Author) Duan, Zhenzhong (Author) Zhou, Lian (Author) |
| Date: | 1998 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/23565 |
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