利用微带谐振技术研究了MgB2/A12O3和YBa2Cu3o7-X/LaAlO3(YBCO/LAO)超导薄膜的微波性质.一个颗粒尺寸模型被用来分析超导薄膜的穿透深度和表面电阻.结果表明,对于高质的YBCO/LAO,微波性质主要由颗粒决定.对于低质的MgB2/Al2O3,该薄膜的微波性质主要由颗粒边界决定.
Microwave responses of MgB2/A12O3 and YBa2Cu3O7-x/LaAlO3(YBCO/LAO)superconducting thin films were investigated by microstrip resonator technique.A grain-size model is used to analyze micro-wave properties of the films.For high quality YBCO/LAO film,penetration depth and surface resistance were dominated by grains.For low quality MgB2/A12 O3,microwave properties of the thin film were most-ly dominated by grain boundaries.
参考文献
| [1] | N. Klein;B. B. Jin;R. Wordenweber;P. Lahl;W. N. Kang;Hyeong-Jin Kim;Eun-Mi Choi;Sung-IK Lee;T. Dahm;K. Maki .Microwave Properties of MgB{sub}2 Thin Films[J].IEEE Transactions on Applied Superconductivity: A Publication of the IEEE Superconductivity Committee,2003(2 Pt.3):3253-3256. |
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