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| 利用微带谐振技术研究MgB2/Al2O3和YBa2Cu3O7-x/LaAlO3超导薄膜的微波性质 | |
| 引用本文： | 史力斌,张国华. 利用微带谐振技术研究MgB2/Al2O3和YBa2Cu3O7-x/LaAlO3超导薄膜的微波性质[J]. 低温物理学报, 2009, 31(1): 64-67 |
| 作者姓名： | 史力斌 张国华 |
| 作者单位： | 渤海大学物理系,辽宁锦州,121013;北京科技大学应用科学学院,北京,100083 |
| 摘 要： | 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. |
| 关 键 词： | MgB2/A12O3 YBa2Cu3O7-x/IaAlO3 微波响应 |
A STUDY ON MICROWAVRE PROPERTIES OF MgB_2/Al_2O_3 AND YBa_2Cu_3O_(7-x)/LaAlO_3 SUPERCONDUCTING THINFILMS BY MICROSTRIP REDSONATOR TECHNIQUE |
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| SHI Li-bin ZHANG Guo-hua. A STUDY ON MICROWAVRE PROPERTIES OF MgB_2/Al_2O_3 AND YBa_2Cu_3O_(7-x)/LaAlO_3 SUPERCONDUCTING THINFILMS BY MICROSTRIP REDSONATOR TECHNIQUE[J]. Chinese Journal of Low Temperature Physics, 2009, 31(1): 64-67 | |
| Authors: | SHI Li-bin ZHANG Guo-hua |
| Affiliation: | SHI Li-bin1 ZHANG Guo-hua21 Department of Physics,Bohai University,Liaoning Jinzhou 1210132 Department of Physics,School of Applied Science,University of Science , Technology Beijing,Beijing 100083 |
| Abstract: | Microwave responses of MgB2/Al2O3 and YBa2Cu3O7-x/LaAlO3 (YBCO/LAO) superconducting thin films were investigated by microstrip resonator technique. A grain-size model is used to analyze microwave properties of the films. For high quality YBCO/LAO film, penetration depth and surface resistance were dominated by grains. For low quality MgB2/Al2O3, microwave properties of the thin film were mostly dominated by grain boundaries. |
| Keywords: | MgB2/A12O3 YBa2Cu3O7-x/IaAlO3 MgB2/A1203 YBa2Cu3O7-x/LaAlO3 microwave response |
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