Microwave properties of YBCO/LAO and YBCO/MgO superconducting thin films

SHI Libin; WANG Yunfei; KE Yuyang; ZHANG Guohua; LUO Sheng; ZHANG Xueqiang; LI Chunguang; LI Hong; HE Yusheng

doi:10.13374/j.issn1001-053x.2007.11.017

Volume 29 Issue 11

Aug. 2021

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Article Navigation > Chinese Journal of Engineering > 2007 > 29(11): 1128-1132

SHI Libin, WANG Yunfei, KE Yuyang, ZHANG Guohua, LUO Sheng, ZHANG Xueqiang, LI Chunguang, LI Hong, HE Yusheng. Microwave properties of YBCO/LAO and YBCO/MgO superconducting thin films[J]. Chinese Journal of Engineering, 2007, 29(11): 1128-1132. doi: 10.13374/j.issn1001-053x.2007.11.017

Citation:

SHI Libin, WANG Yunfei, KE Yuyang, ZHANG Guohua, LUO Sheng, ZHANG Xueqiang, LI Chunguang, LI Hong, HE Yusheng. Microwave properties of YBCO/LAO and YBCO/MgO superconducting thin films[J]. Chinese Journal of Engineering, 2007, 29(11): 1128-1132. doi: 10.13374/j.issn1001-053x.2007.11.017

Citation:

SHI Libin, WANG Yunfei, KE Yuyang, ZHANG Guohua, LUO Sheng, ZHANG Xueqiang, LI Chunguang, LI Hong, HE Yusheng. Microwave properties of YBCO/LAO and YBCO/MgO superconducting thin films[J]. Chinese Journal of Engineering, 2007, 29(11): 1128-1132. doi: 10.13374/j.issn1001-053x.2007.11.017

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Microwave properties of YBCO/LAO and YBCO/MgO superconducting thin films

doi: 10.13374/j.issn1001-053x.2007.11.017

1. Department of Physics, Bohai University, Jinzhou 121000, China;
2. Applied Science School, University of Science and Technology Beijing, Beijing 100083, China;
3. Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China

Received Date: 2006-07-25
Rev Recd Date: 2006-09-05

Available Online: 2021-08-16

Abstract

Abstract

The microwave response of YBa₂Cu₃O₇/LaAlO₃ (YBCO/LAO) and YBa₂Cu₃O₇/MgO (YBCO/MgO) superconducting thin films was studied by microstrip resonator technique. Microwave characteristics of the superconducting films were analyzed by the temperature dependence of resonant frequency, load quality factor and insert loss. The penetration depth at 0 K can be attained as:λ₀=265 nm for YBCO/LAO and λ₀=280 nm for YBCO/MgO. The microwave surface resistance Rs of YBCO/LAO and YBCO/MgO was also investigated by microstrip resonator.
- superconducting thin film,
- YBa₂Cu₃O₇,
- LaAlO₃,
- MgO,
- penetration depth,
- microstrip resonator,
- surface resistance