Effects of Irradiation on Vicinal YBCO Thin Films

被引：3

作者：

Withnell, Tom D. ^{[1
]}

Schoeppl, K. Robert ^{[1
]}

Durrell, John H. ^{[2
]}

Weber, Harald W. ^{[1
]}

机构：

[1] Austrian Univ, Inst Atom, A-1020 Vienna, Austria

[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2009年 / 19卷 / 03期

关键词：

Radiation effects; vicinal thin film; YBCO; YBA2CU3O7-DELTA;

D O I：

10.1109/TASC.2009.2019240

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The achievable transport critical current densities in coated conductors are limited in part by low angle grain boundaries. Effects like vortex channeling found in these low angle boundaries at low fields can also be studied in vicinal thin films. The influence of neutron irradiation, a proven method for increasing magnetic and current carrying properties, on these effects was investigated in this work. An YBCO vicinal sample, grown on a SrTiO3 substrate with the ab plane oriented at 6 degrees off parallel, was fabricated through pulsed layer deposition ( PLD) and both transition temperature and transport current measurements were performed using a 2-axis probe. The sample was rotated at varying temperature in an applied magnetic field of up to 6 T. The angular dependence of the critical density was determined before and after an irradiation to a neutron fluence of 1 x 10(21) m(-2) in the TRIGA Mark II reactor in Vienna.

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收藏

页码：2925 / 2928

页数：4

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