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Current-density enhancements of the highest-Tcsuperconductors with GeV protons

 

作者: J. R. Thompson,   L. Krusin-Elbaum,   D. K. Christen,   K. J. Song,   M. Paranthaman,   J. L. Ullmann,   J. Z. Wu,   Z. F. Ren,   J. H. Wang,   J. E. Tkaczyk,   J. A. DeLuca,  

 

期刊: Applied Physics Letters  （AIP Available online 1997）
卷期: Volume 71, issue 4  

页码: 536-538

 

ISSN:0003-6951

 

年代: 1997

 

DOI:10.1063/1.119601

 

出版商: AIP

 

数据来源: AIP

 

摘要:

In several Tl- and Hg-based high-Tcsuperconducting materials, vortex-pinning defects were formed by irradiation with 0.8 GeV protons. The protons cause heavy constituent nuclei (Tl, Hg, Bi, &ellip;) to fission, which generates randomly oriented tracks. These columnar defects lead to significant enhancements in the current-conducting properties. We investigated bulk materials and thin films, irradiated with or without Pb or Au “amplifier foil” overlayers, which increase the number of column-creating fission fragments. ©1997 American Institute of Physics.

 

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