Growth and characterization of Mn2+-activated magnesium aluminate spinel single crystals

Anis Jouini, Akira Yoshikawa, Tsuguo Fukuda, Georges Boulon

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Several concentrations of Mn2+-doped MgAl2O4 single crystals have been successfully grown using the micro-pulling-down (μ-PD) method. Due to their high melting temperature, the use of special Ir-Re crucibles was necessary. Because of the wide solubility range, the dependence of the behavior of the solid-liquid interface on the growth parameters was carefully studied to establish the growth conditions of stoichiometric MgAl2O4 spinel. Rod shaped 〈1 0 0〉 oriented single crystals of undoped and manganese doped MgAl2O4 spinel with 3 mm in diameter and a few centimeters in length were obtained in reducing argon atmosphere. The composition of Mn ions along the growth a-axis was controlled by the electron probe micro-analysis (EPMA). The optical transmission, crystallinity and thermal expansion of the grown crystals are investigated as well the annealing effect under oxidizing atmosphere will be detailed.

Original languageEnglish
Pages (from-to)517-521
Number of pages5
JournalJournal of Crystal Growth
Volume293
Issue number2
DOIs
Publication statusPublished - 2006 Aug 1

Keywords

  • A1. Transmission
  • A2. Crystal growth from the melt
  • A2. Micro-pulling-down method
  • A2. Mn and Mn ion
  • B1. MgAlO Spinel
  • B3. Tunable solid-state lasers

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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