Modulated structure and antiphase boundary in (Ca0.4, Nd0.6)1.54Ti2O6 microwave dielectrics

Mitsuharu Yonemura*, Naoki Hara, Kazuhito Kamei, Takahiro Takada

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


High resolution electron microscopy (HREM) observation with the multislice simulation was performed in order to analyze the structure of Ca-Nd-Ti-O microwave dielectrics which have recently been synthesized. The detailed structure that was predicted by X-ray diffractmetry and Rietvelt analysis was the structure in which the lattice vacancies exist selectively in the (002) plane of perovskitelike unit cells. We confirmed the predicted structure by comparing the HREM images with simulated images. We also revealed the antiphase boundary (APB) caused by the displacement of the (002) defective planes.

Original languageEnglish
Pages (from-to)1143-1148
Number of pages6
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Issue number12
Publication statusPublished - 1996
Externally publishedYes


  • Antiphase boundary
  • High resolution electron microscopy
  • Lattice vacancy
  • Microwave dielectrics
  • Modulated structure
  • Multislice method
  • Perovskite

ASJC Scopus subject areas

  • Metals and Alloys


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