Abstract
Specific heat experimental results in the 3x10 −2 ≦ | t | ≦5.5x10 −5 temperature range ( t = (T−T C) T C ) were fitted by means of the logarithmically corrected Landau theory of uniaxial dipolar ferroelectrics. The non-universal parameters b and t O as well as the transverse and longitudinal correlation lengths at zero temperature are determined.
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