Effect of Yb3+ content on purity and crystal growth of Ba2NaNb5O15

K. Lebbou, H. Itagaki, A. Yoshikawa, T. Fukuda, F. Carillo-Romo, G. Boulon, A. Brenier, M. Th Cohen-Adad

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Growth by the micro-pulling-down technique (μ-PD) of homogeneous and crack-free fiber single crystals with composition Ba2Na1-xYbxNb5O15 (0 < x < 0.08) is reported. The effect of Yb3+ addition to barium sodium niobate (BNN, x = 0), having the tungsten bronze-type structure, was examined by room temperature X-ray powder diffraction and differential thermal analysis coupled to thermogravimetry. In the region of the monophased field the structure is tetragonal from x = 0.02 to 0.16. Volume change is mainly by variation of the a-axis length. Addition of Yb3+ to BNN could be effective for the production of high optical quality, crack-free, bulk crystals by the Czochralski technique.

Original languageEnglish
Pages (from-to)655-662
Number of pages8
JournalJournal of Crystal Growth
Volume210
Issue number4
DOIs
Publication statusPublished - 2000 Mar

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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