Phase transitions and dielectric relaxation in dyeing KDP

B. A. Strukov, I. V. Shaidshtein, T. V. Pavlovskaya, S. V. Grabovskii, Y. Uesu, M. Fukunaga, L. Carman

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Specific heat and dielectric constant of KH 2 PO 4 (KDP) crystal with the inclusion of the organic dyes molecules Chicago Sky Blue (CSB) and Amaranth (A) were studied in the temperature interval including the phase transition temperature ( T c = 122 K). It is shown that the inclusions affect the thermal properties of KDP crystal in the narrow vicinity of the transition point and dielectric properties in the whole polar phase - both at stained pyramidal sectors of the crystal. The complex impedance analysis (10 - 2 - 10 6 Hz) shows the noticable dispersion in paraelectric phase resulting from of the electrical conductivity the crystal increasing in stained sectors.

Original languageEnglish
Pages (from-to)329-334
Number of pages6
JournalFerroelectrics
Volume267
DOIs
Publication statusPublished - Jan 1 2002

Keywords

  • Dielectric constant
  • Dielectric relaxation
  • Dyes
  • Ferroelectric phase transition
  • KHPO
  • Specific heat
  • Specific resistivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Strukov, B. A., Shaidshtein, I. V., Pavlovskaya, T. V., Grabovskii, S. V., Uesu, Y., Fukunaga, M., & Carman, L. (2002). Phase transitions and dielectric relaxation in dyeing KDP. Ferroelectrics, 267, 329-334. https://doi.org/10.1080/00150190210996