Growth of Ba1-xCaxTiO3 single-crystal fibers by a laser heated pedestal method

Jyh Chen Chen, Chi Yung Chen

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

In this study, Ba1-xCaxTiO3 single-crystal fibers with various compositions, x = 0.0, 0.1 and 0.2, were grown by the laser heated pedestal growth method using SrTiO3 and Ba1-xCaxTiO3 seeds, with x = 0.1 and 0.2. The grown crystals possess a tetragonal structure, and the composition along the growth direction is very uniform. Such Ba1-xCaxTiO3 crystal fibers are easier to grow using Ba1-xCaxTiO3 seeds because of a better-structured crystal at the beginning of the growth process compared with the SrTiO3 seed. As the composition of Ca increases, the unit-cell parameters of tetragonal Ba1-xCaxTiO3 crystal fibers decrease, the cubic-tetragonal phase-transition temperature is slightly reduced, and the tetragonal-orthorhombic phase-transition temperature declines dramatically.

Original languageEnglish
Pages (from-to)640-646
Number of pages7
JournalJournal of Crystal Growth
Volume236
Issue number4
DOIs
StatePublished - Mar 2002

Keywords

  • A1. X-ray diffraction
  • A2. Growth from melt
  • A2. Laser heated pedestal growth
  • B1. Barium compounds
  • B1. Oxides

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