Influence of rare earth ions on ba0-ti02-rare earth oxide ceramics for microwave applications

Koichi Fukuda, Itsuhiro Fujii, Ryozo Kltoh, Yasuo Cho, Ikuo Awai

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

The dielectric ceramic materials, 0.143BaO-0.714TiO2-0.143 rare earth oxides (REOx), have unique dielectric properties at microwave frequencies, which depend on the rare earth element (RE=Pr, Nd, Sm). In order to study the effect of the rare earth ions on dielectric properties, infrared reflection spectra of these ceramics were measured from 50 to 4000 cm-1 at room temperature. These data were analyzed according to the model proposed by Gervais and Piriou. Also, the fourth-order dielectric constants of these materials were estimated for the purpose of investigating the relationship between the dielectric loss and the anharmonic terms in the potential energy.

Original languageEnglish
Pages (from-to)1712-1715
Number of pages4
JournalJapanese journal of applied physics
Volume32
Issue number4 R
DOIs
Publication statusPublished - 1993 Apr
Externally publishedYes

Keywords

  • Anharmonic term
  • High dielectric materials
  • Higher-order dielectric constants
  • Infrared reflection spectra
  • Microwave application
  • Rare earth

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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