Field emission current from high-Tc ceramic cathodes

被引：0
|
作者：
Ziaja, J [1 ]
Zylka, P [1 ]
机构：
[1] Univ Wroclaw, Inst Electrotech & Electrotechnol Fundamentals, PL-50138 Wroclaw, Poland
来源：
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 1999年 / 6卷 / 04期
关键词：
D O I：
10.1109/94.788743
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：
In this work the result of emission phenomena investigations are presented. Experiments were conducted for high-T-c superconducting ceramics YBaCuO and BiPbSrCaCuO. Fowler-Nordheim characteristics and the current-temperature dependencies were observed for superconducting and non-superconducting cathodes. It was noticed that the emission current value abruptly changed in the vicinity of the critical temperature. All measurements were done in a vacuum chamber at 10(-6) Pa. X-ray diffraction analysis and scanning electron microscopy examination of the ceramic electrodes were performed also.
引用
收藏
页码：450 / 454
页数：5
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