Effect of gadolinium (Gd3+) addition on the monophased field and crystal growth of Ba2NaNb5O15 (BNN)

K. Lebbou, H. Itagaki, A. Yoshikawa, T. Fukuda, G. Boulon, A. Brenier

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11 Citations (Scopus)

Abstract

Ba2Na1-3xGdxNb5O15 compounds with (0.02≤x≤0.2) have been prepared. The limit of the monophased composition field was determined as a function of Gd substitution. The effect of Gd on barium sodium niobate (BNN) was examined by X-ray powder diffraction at room temperature as a function of temperature. The melt behavior was studied by DTA. The homogeneity of single-crystal fibers doped with Gd and grown by micro-pulling down technique was investigated by EPMA. No cracks or other inhomogeneities could be detected, as already shown for Yb- and Nd-doped BNN. In this study, Gd addition was effective for growth of bulk crystals by Czochralski technique.

Original languageEnglish
Pages (from-to)59-66
Number of pages8
JournalJournal of Crystal Growth
Volume224
Issue number1-2
DOIs
Publication statusPublished - 2001 Apr

Keywords

  • A2. Growth from melt
  • A2. Single crystal growth
  • B1. Tungsten bronzes
  • B2. Nonlinear optic materials

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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