NONLINEAR MICROWAVE PROPERTIES OF SUPERCONDUCTING NB MICROSTRIP RESONATORS

被引：93

作者：

GOLOSOVSKY, MA ^{[1
]}

SNORTLAND, HJ ^{[1
]}

BEASLEY, MR ^{[1
]}

机构：

[1] STANFORD UNIV,EDWARD L GINZTON LAB,STANFORD,CA 94305

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.51.6462

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present measurements of the nonlinear surface impedance ZS=RS+iXS of thin-film Nb micro- strip resonators. We demonstrate correlation between material properties of the films and the occurrence of nonlinearity. The nonlinearity is characterized using a dimensionless parameter r=ΔRS(P)/ΔXS(P). We make a short survey of the mechanisms of nonlinear electrodynamics of superconductors and demonstrate that our experimental results are best accounted for by the vortex penetration into the grains. © 1995 The American Physical Society.

引用

页码：6462 / 6469

页数：8

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