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Il Nuovo Cimento D

, Volume 16, Issue 10–11, pp 1803–1807 | Cite as

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
Article

Summary

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).

PACS

74.30.Gn Response to electromagnetic fields nuclear magnetic resonance ultrasonic attenuation 

PACS

01.30.Cc Conference proceedings 

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Copyright information

© Società Italiana di Fisica 1994

Authors and Affiliations

  • P. Dore
    • 1
  • G. P. Gallerano
    • 2
  • A. Doria
    • 2
  • E. Giovenale
    • 2
  • R. Trippetti
    • 2
  • V. Boffa
    • 3
  1. 1.Dipartimento di FisicaUniversità «La Sapienza»RomaItaly
  2. 2.ENEA, INN-FISFrascatiRomaItaly
  3. 3.ENEA, ERG-FUSRomaItaly

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