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.
|Pages (from-to)||1803 - 1807|
|Number of pages||5|
|Journal||Nuovo Cimento della Societa Italiana di Fisica D - Condensed Matter, Atomic, Molecular and Chemical Physics, Biophysics|
|Publication status||Published - Oct 1994|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Dore, P., Gallerano, G. P., Doria, A., Giovenale, E., Trippetti, R., & Boffa, V. (1994). Study of the far-infrared and mm-wave conductivity of YBCO in the normal state. Nuovo Cimento della Societa Italiana di Fisica D - Condensed Matter, Atomic, Molecular and Chemical Physics, Biophysics, 16(10-11), 1803 - 1807. https://doi.org/10.1007/BF02462177