The Anomalous Behaviour of the PPE Signal in the Critical Region of a Phase Transition — New Support for the General Theoretical Model

  • D. Dadarlat
  • M. Chirtoc
  • R. M. Candea
  • A. Frandas
  • D. Bićanić
Conference paper
Part of the Springer Series in Optical Sciences book series (SSOS, volume 69)

Abstract

The structural (tetragonal-orthorombic) phase transition of La1.94Sr0.06CuO4 was detected using the PPE method. The experiment, performed in the vicinity of the singular point of the operation diagram, allows for the indirect determination of the material optical absorption coefficient.

Keywords

Phase Transition Anomalous Behaviour Inversion Effect Pyroelectric Sensor Signal Jump 
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References

  1. [1]
    M.Chirtoc and G.Mihailescu, Phys.Rev. B40, 9606 (1989).ADSCrossRefGoogle Scholar
  2. [2]
    M.Chirtoc, D.Dadarlat and D.Bicanic, paper in this Conference.Google Scholar
  3. [3]
    A.Mandelis, F.Care, K.K.Chan and L.C.M.Miranda, Appl.Phys. A38, 117 (1985).Google Scholar
  4. [4]
    D.Dadarlat, M.Chirtoc and D.Bicanic, Appl.Phys. A50, 357 (1990).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • D. Dadarlat
    • 1
  • M. Chirtoc
    • 1
  • R. M. Candea
    • 1
  • A. Frandas
    • 1
  • D. Bićanić
    • 2
  1. 1.Institute of Isotopic and Molecular TechnologyCluj-Napoca 5Romania
  2. 2.Department of Agricultural Engineering and Physics, AgrotechnionWageningen Agricultural UniversityWageningenThe Netherlands

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