Nonstoichiometry in apatite-type neodymium silicate single crystals

Authors :: Higuchi, M.
Kodaira, K.
Nakayama, S.
Source :: 日本結晶成長学会誌. 26(2):84
Publication Year :: 1999
Publisher :: 日本結晶成長学会, 1999.
Abstract: 23pA5<br />Apatite-type neodymium silicate single crystals with various compositions were grown by the floating zone method and their oxide ionic conductivity was measured. Based on macroscopic defects and conductivities of the crystals. The congruent composition was estimated to be around Nd9.20(SiO_4)6O1.8, which is different from the stoichiometric one.

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