Analysis of pyroelectric and dielectric measurements on boracites

W. A. Smith; M. E. Rosar; A. Shaulov

doi:10.1080/00150198108218155

Analysis of pyroelectric and dielectric measurements on boracites

W. A. Smith, M. E. Rosar, A. Shaulov

Koninklijke Philips N.V.

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Abstract

The measured temperature dependence of the dielectric constant and pyroelectric coefficient in Fel, CuCl and Mnl boracites are analyzed according to the thermodynamic model advanced by Dvorak and Petzelt and by Gufan and Sakhnenko for the ferroelectric cubic-orthorhombic phase transition. A simplified form of their thermodynamic potential yields acceptable fits to the data over a large temperature interval. The values of the parameters obtained from the fits, however, are not consistent with the usual systematic neglect of high-order terms in the potential.

Original language	English
Pages (from-to)	467-470
Number of pages	4
Journal	Ferroelectrics
Volume	36
Issue number	1
DOIs	https://doi.org/10.1080/00150198108218155
State	Published - Oct 1981
Externally published	Yes

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10.1080/00150198108218155

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AB - The measured temperature dependence of the dielectric constant and pyroelectric coefficient in Fel, CuCl and Mnl boracites are analyzed according to the thermodynamic model advanced by Dvorak and Petzelt and by Gufan and Sakhnenko for the ferroelectric cubic-orthorhombic phase transition. A simplified form of their thermodynamic potential yields acceptable fits to the data over a large temperature interval. The values of the parameters obtained from the fits, however, are not consistent with the usual systematic neglect of high-order terms in the potential.

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Analysis of pyroelectric and dielectric measurements on boracites

Abstract

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