MICROWAVE PROPERTIES OF EUBA2CU3O7-X THIN-FILMS ON MGO

被引:18
作者
ASANO, H [1 ]
SATOH, M [1 ]
KONAKA, T [1 ]
机构
[1] NIPPON TELEGRAPH & TEL PUBL CORP, TRANSMISS SYST LABS, TOKAI, IBARAKI 31911, JAPAN
关键词
D O I
10.1063/1.104688
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have measured the microwave surface resistance of sputtered EuBa2Cu3O7-x superconducting films on MgO in a gold-plated Invar host cavity at 50 GHz. Low surface resistance of 2 m-OMEGA was achieved even at 77 K and 50 GHz for highly c-axis oriented films with good in-plane epitaxy together with a T(c) of 93 K and a J(c) of 1.4 X 10(6) A/cm2 at 90 K. This surface resistance value is slightly lower than that for a classical superconductor of Nb at the same frequency at the same reduced temperature (T/T(c)) of 7.7 K.
引用
收藏
页码:2981 / 2983
页数:3
相关论文
共 21 条
  • [21] HIGH Q COPLANAR TRANSMISSION-LINE RESONATOR OF YBA2CU3O7-X ON MGO
    VALENZUELA, AA
    RUSSER, P
    [J]. APPLIED PHYSICS LETTERS, 1989, 55 (10) : 1029 - 1031