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

Libin Shi*, Yunfei Wang, Yuyang Ke, Guohua Zhang, Sheng Luo, Xueqiang Zhang, Chunguang Li, Hong Li, Yusheng He

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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 0K 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.

Original languageEnglish
Pages (from-to)1128-1132
Number of pages5
JournalBeijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing
Volume29
Issue number11
Publication statusPublished - Nov 2007
Externally publishedYes

Keywords

  • LaAlO
  • MgO
  • Microstrip resonator
  • Penetration depth
  • Superconducting thin film
  • Surface resistance
  • YBaCu O

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