Microwave properties of YBa2Cu3O7-delta thin films grown on MgO or Al2O3 substrates

被引：9

作者：

Chambonnet, D

Mehri, F

Degoy, S

Lederer, P

Belouet, C

Fages, C

Keller, D

Carru, JC

Correra, L

机构：

[1] UNIV SCI & TECH LILLE FLANDRES ARTOIS, DHS, IEMN, F-59652 VILLENEUVE DASCQ, FRANCE

[2] UNIV PARIS 06, LMCP, F-75005 PARIS, FRANCE

[3] UNIV PARIS 07, F-75005 PARIS, FRANCE

[4] UNIV PARIS SUD, PHYS SOLIDES LAB, PARIS, FRANCE

[5] IST LAMEL, I-40129 BOLOGNA, ITALY

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1996年 / 271卷 / 1-2期

关键词：

D O I：

10.1016/S0921-4534(96)00525-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The conductivity sigma* = sigma(1) + j sigma(2) of YBCO films grown by pulsed laser assisted deposition on (100) MgO and (<1(1)over bar 02>) Al2O3 substrates was measured at 22 GHz using a microwave transmission method. A peak close to the transition temperature was observed in the sigma(1)(T) curves, This peak is ascribed to a specific behavior of the granular superconducting material with a small spread (a few degrees) in the critical temperature. This granularity is also responsible for the observed large value of the penetration depth.

引用

页码：67 / 78

页数：12

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