MILLIMETER-WAVE SURFACE-RESISTANCE OF LASER-ABLATED YBA2CU3O7-DELTA SUPERCONDUCTING FILMS

被引：8
|
作者：
MIRANDA, FA [1 ]
GORDON, WL [1 ]
BHASIN, KB [1 ]
WARNER, JD [1 ]
机构：
[1] NASA,LEWIS RES CTR,CLEVELAND,OH 44135
来源：
APPLIED PHYSICS LETTERS | 1990年 / 57卷 / 10期
关键词：
D O I：
10.1063/1.104281
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have measured the millimeter-wave surface resistance of YBa 2Cu3O7-δ superconducting films in a gold-plated copper host cavity at 58.6 GHz between 25 and 300 K. High quality laser-ablated films of 1.2 μm thickness were deposited on SrTiO3 and LaGaO3 substrates. Their transition temperatures (T c's) were 90.0 and 88.9 K, with a surface resistance at 70 K of 82 and 116 mΩ, respectively. These values are better than the values for the gold-plated cavity at the same temperature and frequency.
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收藏
页码：1058 / 1060
页数：3
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