SURFACE IMPEDANCE MEASUREMENTS AND CALCULATIONS ACCORDING TO THE MATTIS BARDEEN THEORY ON HIGH-TC SUPERCONDUCTORS

被引：0

作者：

KATARIA, ND ^{[1
]}

POPEL, R ^{[1
]}

WOLF, H ^{[1
]}

SACHSE, H ^{[1
]}

KUHLEMANN, T ^{[1
]}

NIEMEYER, J ^{[1
]}

机构：

[1] TECH UNIV BRAUNSCHWEIG,INST HOCHFREQUENZTECH,W-3300 BRAUNSCHWEIG,GERMANY

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 02期

关键词：

D O I：

10.1109/20.133423

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The surface impedance measurements made on YBa2Cu3O7-x (YBCO) films are reported and compared with the exact solution of the Mattis Bardeen theory applied to strong coupling superconductors. Epitaxial films of YBCO were grown by the coevaporation of Y, BaF2 and Cu and ex-situ wet O2 annealing. The films were deposited at substrate temperatures T(s) ranging from 200-degrees-C to 820-degrees-C. X-ray diffraction shows that the films grown in the temperature range 720 degrees-C-780 degrees-C are epitaxial with the c-axis perpendicular to the substrate surface. Surface impedances of the samples were measured using a cylindrical copper cavity at 66.8 GHz.

引用

页码：1302 / 1305

页数：4

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