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

Jyh Chen Chen, Chi Yung Chen

研究成果: 雜誌貢獻期刊論文同行評審

7 引文 斯高帕斯(Scopus)

摘要

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.

原文???core.languages.en_GB???
頁(從 - 到)640-646
頁數7
期刊Journal of Crystal Growth
236
發行號4
DOIs
出版狀態已出版 - 3月 2002

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