TY - JOUR
T1 - Growth and characterization of Mn2+-activated magnesium aluminate spinel single crystals
AU - Jouini, Anis
AU - Yoshikawa, Akira
AU - Fukuda, Tsuguo
AU - Boulon, Georges
N1 - Funding Information:
The authors would like to thank Mr. Murakami for his assistance with the EPMA analysis. One of the authors (A. Jouini) is grateful to the Japan Society for the Promotion of Science (JSPS) for financial support: Postdoctoral fellowship for North American and European Researchers.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006/8/1
Y1 - 2006/8/1
N2 - 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.
AB - 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.
KW - A1. Transmission
KW - A2. Crystal growth from the melt
KW - A2. Micro-pulling-down method
KW - A2. Mn and Mn ion
KW - B1. MgAlO Spinel
KW - B3. Tunable solid-state lasers
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U2 - 10.1016/j.jcrysgro.2006.05.081
DO - 10.1016/j.jcrysgro.2006.05.081
M3 - Article
AN - SCOPUS:33746385884
SN - 0022-0248
VL - 293
SP - 517
EP - 521
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 2
ER -