MICROWAVE RESONANCES WITH PARTIALLY UNTWINNED YBCO FILMS NEAR 10 GHz

被引：5

作者：

Vogt, A. ^{[1
]}

Herwig, R. ^{[1
]}

Marienhoff, P. ^{[1
]}

Neuhaus, M. ^{[1
]}

Scherer, T. ^{[1
]}

Jutzi, W. ^{[1
]}

机构：

[1] Univ Karlsruhe, Kaiserstr 12, D-7500 Karlsruhe 1, Germany

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

关键词：

D O I：

10.1109/77.233605

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：

Partially untwinned YBCO films on twin-free NdGaO3-substrates have been fabricated by off-axis sputtering. The ratio of the a- and b-axis dc resistances is in the same order as of untwinned crystals. The film dc resistances values differ by less than a factor 2 from untwinned crystals. The surface resistance in the a- and b-direction near 10 GHz has been measured with only one parallel plate resonator of rectangular area. The anisotropy ratio of the surface resistance at 4.2 K is in the order of 1.9. The b-axis surface resistance at 10 GHz and 4.2 K is about 25 mu Omega.

引用

页码：1715 / 1718

页数：4

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