Optical anisotropy of YBa2Cu3O7-x

I. Bozovic, K. Char, S. J.B. Yoo, A. Kapitulnik, M. R. Beasley, T. H. Geballe, Z. Z. Wang, S. Hagen, Nai Phuan Ong, D. E. Aspnes, M. K. Kelly

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Abstract

The optical anisotropy of YBa2Cu3O7-x in the 0.08-5.6 eV region is investigated by polarized reflectance measurements on single crystals, and by transmittance, reflectance, and ellipsometric measurements on oriented thin films. In the visible-near-uv spectral region the anisotropy is relatively mild, but a huge anisotropy is observed in the infrared. Here, the reflectance increases with decreasing frequency for both polraizations, consistent with metallic conductance both parallel and perpendicular to the ab plane. The c-axis plasma frequency is strikingly low, but there is strong damping which could originate from a continuum of low-energy interband transitions.

Original languageEnglish (US)
Pages (from-to)5077-5080
Number of pages4
JournalPhysical Review B
Volume38
Issue number7
DOIs
StatePublished - Jan 1 1988

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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    Bozovic, I., Char, K., Yoo, S. J. B., Kapitulnik, A., Beasley, M. R., Geballe, T. H., Wang, Z. Z., Hagen, S., Ong, N. P., Aspnes, D. E., & Kelly, M. K. (1988). Optical anisotropy of YBa2Cu3O7-x. Physical Review B, 38(7), 5077-5080. https://doi.org/10.1103/PhysRevB.38.5077