Dielectric waveguide with a YBa2Cu3O6+x boundary layer at 94 GHz

Cheng-Liang Huang, Donald P. Butler, Jerome K. Butler

Research output: Contribution to journalArticlepeer-review


We report on the measurement of the millimeter wave transmission properties of a dielectric waveguide with a YBa2Cu3O6+x boundary layer. The transmitted power and phase shift of a 94 GHz signal propagating through the dielectric waveguide structure was measured over the temperature range of 77-150 K. The transmitted power was observed to depend upon temperature due to the dissipation of the millimeter wave signal in the YBa2Cu3O6+x boundary layer. Thereby the temperature dependence of the normal-state ac conductivity was measured. The experimental data were fitted to a Drude model for the normal-state ac conductivity of the YBa2Cu3O6+x. The temperature dependence of the Drude scattering time was obtained. The scattering time was found to decrease with decreasing temperature and was 7.5-11.2 ps in magnitude.

Original languageEnglish
Pages (from-to)3194-3196
Number of pages3
JournalJournal of Applied Physics
Issue number6
Publication statusPublished - 1990 Dec 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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