Far-infrared optical conductivity of YBa2Cu3O7-x thin films

Hajime Shibata, Shinji Kimura, Satoshi Kashiwaya, Shigehiro Ueno, Masao Koyanagi, Norio Terada, Etsuo Kawate, Paul Fons, Yukio Tanaka

Research output: Contribution to journalConference articlepeer-review


A new method to characterize the optical constants of thin films has been applied to YBa2Cu3O7-x epitaxial single crystal thin films Tc=90 K grown on MgO substrates to determine the far-infrared optical conductivity σab(ω) for ω = 50 - 250 cm-1 and T = 34 - 97 K. Analysis of the temperature dependence of the σab(ω) based on the two-fluid model suggests that the symmetry of the superconducting pairing state of the specimen is d-wave.

Original languageEnglish
Pages (from-to)2197-2200
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume341-348 (IV)
Publication statusPublished - 2000 Nov
Externally publishedYes
EventInternational Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI - Houston, TX, USA
Duration: 2000 Feb 202000 Feb 25

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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