Study of the far-infrared and mm-wave conductivity of YBCO in the normal state

P. Dore, G.P. Gallerano, A. Doria, E. Giovenale, R. Trippetti, V. Boffa

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An accurate determination of the optical conductivity σ(ν) of high-T c materials at low frequencies (ν<100 cm-1) is still an open problem. In the present paper we report new far-infrared data showing that the LaAlO3 crystal, on which high-quality YBCO films can be deposited, is well transparent at low frequencies. Test measurements have also been performed by employing the ENEA compact FEL facility; preliminary reslts indicate the possibility to obtain high-accuracy spectroscopic data in the mm-wave region. On the basis of these results, we have in program mm-wave and far-infrared transmittance measurements on thin YBCO films on LaAlO3, in order to get new information on the low-frequency behaviour of σ(ν). © 1994 Societá Italiana di Fisica.
Original languageEnglish
Pages (from-to)1803 - 1807
Number of pages5
JournalNuovo Cimento della Societa Italiana di Fisica D - Condensed Matter, Atomic, Molecular and Chemical Physics, Biophysics
Issue number10-11
Publication statusPublished - Oct 1994
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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