Dielectric anomalies related to domain walls in ferroelectric CsD2AsO4

Dielectric anomalies related to domain walls in ferroelectric CsD2AsO4

Dielectric measurements of CsD 2 AsO 4 confirm the observations of Sidorkin et al. [Sov. Phys. Sol. St. 26 , 1910 (1984)] that a peak 15-25K below T c is present and probably due to wall effects involving pinning by H-ions. However, our values for both T c and the temperature T W of the wall anomaly...

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Veröffentlicht in:Ferroelectrics. Letters section 1987-09, Vol.7 (6), p.171-178
Hauptverfasser: Baski, Alison A., Oliver, W. F., Scott, J. F.
Format: Artikel
Sprache:eng
Schlagworte:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Ferroelectricity and antiferroelectricity
Physics
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Zusammenfassung:Dielectric measurements of CsD 2 AsO 4 confirm the observations of Sidorkin et al. [Sov. Phys. Sol. St. 26 , 1910 (1984)] that a peak 15-25K below T c is present and probably due to wall effects involving pinning by H-ions. However, our values for both T c and the temperature T W of the wall anomaly are ≈30k higher than those of the Soviet work. Our value of T C = 224K agrees with that of Loiacono et al. [Ferroelectrics 14, 761 (1976)]. This higher transition temperature is probably due to a higher D-concentration (∼85%) than is present in the Soviet specimens.
ISSN:0731-5171
1563-5228
DOI:10.1080/07315178708200547