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

来源：

APPLIED PHYSICS LETTERS | 1991年 / 58卷 / 25期

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

页码：2981 / 2983

页数：3