Classical behavior of the index of refraction in two ferroelectrics in the high-temperature phase

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1 September 1982

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 26 (5) , 2707-2709
https://doi.org/10.1103/physrevb.26.2707

Abstract

We report very accurate measurements of the optic index of refraction as a function of temperature

n (T)

of two ferroelectric materials PbTi

O_{3}

and

{Pb}_{5}

{Ge}_{3}

O_{11}

. In sharp contrast to results in BaTi

O_{3}

,

n (T)

is linear in the high-temperature centrosymmetric phases. The implications are discussed.

Keywords

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