Eu3Si15 − xAl1 + xOxN23 − x(x≃ 5/3) as a commensurate composite crystal
作者： Yuichi Michiue , Kousuke Shioi , Naoto Hirosaki , Takashi Takeda , Rong-Jun Xie
DOI: 10.1107/S0108768109030419
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摘要: A new Eu-SiAlON crystal, Eu3Si(15-x)Al(1 + x)O(x)N(23-x) (x approximately 5/3), was found and the structure determined by an X-ray diffraction technique using a twinned sample. The consists of host framework, which is constructed connection MX4 tetrahedra (M: Si or Al; X: O N), Eu ions as guest ions. considered to be commensurate composite crystal. basic vectors are a1 = a/3, b c for first substructure, a2 a/5, second substructure. substructure part framework ions, while remainder taken Possible phases belonging series proposed crystal model in (3 1)-dimensional superspace. Chemical composition, possible space groups, cell parameters, those presented.
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