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Electrodynamic properties of coplanar waveguides made from high-temperature superconducting YBa2Cu3O7-δ electrodes on nonlinear dielectric SrTiO3 substrates

  • A. T. Findikoglu
  • , D. W. Reagor
  • , K. Rasmussen
  • , A. R. Bishop
  • , N. Grønbech-Jensen
  • , Q. X. Jia
  • , Y. Fan
  • , C. Kwon
  • , L. A. Ostrovsky
  • Los Alamos National Laboratory Materials Science and Technology Division
  • Los Alamos National Laboratory Theoretical Division
  • University of Colorado Boulder
  • Los Alamos National Laboratory

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

We present a comprehensive study of broadband (0-2 GHz) electrodynamic properties of coplanar waveguides made from high-temperature superconducting thin-film YBa2Cu3O7-δ electrodes on nonlinear dielectric single-crystal SrTiO3 substrates. The waveguides exhibit strong dielectric nonlinearities, in addition to temperature-, dc-bias-, and frequency-dependent dissipation and refractive index. By using parameters determined from small-signal (linear) transmission characteristics of the waveguides as a function of dc bias, we develop a model equation that successfully predicts and describes large-signal (nonlinear) behavior.

Original languageEnglish
Pages (from-to)1558-1568
Number of pages11
JournalJournal of Applied Physics
Volume86
Issue number3
DOIs
StatePublished - Aug 1999

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