Crystal structure and magnetic properties Nd4Ga2O9 and Sm4Ga2O9
Liu, FS; Liu, QL; Liang, JK; Song, GB; Luo, J; Yang, LT; Zhang, Y; Rao, GH
Corresponding AuthorLiu, FS(
AbstractThe crystal structures of Nd4Ga2O9 and Sm4Ga2O9 compounds synthesized by solid-state reaction at 1400degreesC are investigated. X-ray diffraction shows that Nd4Ga2O9 and Sm4Ga2O9 are monoclinic system with the space group P2(1)/c, and lattice parameters a = 7.7656(1) Angstrom, b = 10.9689(1) Angstrom, c = 11.4727(1) Angstrom, beta = 109.06(1)degrees for Nd4Ga2O9, and a = 7.6613(1) Angstrom, b = 10.8546(1) Angstrom, c = 11.4080(1) Angstrom, beta = 108.80(1)degrees for Sm4Ga2O9. The gallium atoms are in the center of distorted oxygen tetrahedra with an average Ga-O bond distance between 1.82 and 1.85 Angstrom. The rare earth atoms are sixfold or sevenfold coordinated by oxygen. The oxygen atoms are threefold and fourfold coordinated. The magnetization for these compounds clearly reflects paramagnetism. The magnetic susceptibility chi changes with temperature in a Curie-type manner. (C) 2004 Elsevier B.V All rights reserved.
KeywordNd4Ga2O9 Sm4Ga2O9 crystal structure Rietveld refinement x-ray diffraction
Indexed BySCI
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000224762300006
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLiu, FS
Affiliation1.Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
2.SW Univ Sci & Technol, Coll Mat Sci & Engn, Mianyang 621002, Peoples R China
3.Acad Sinica, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Liu, FS,Liu, QL,Liang, JK,et al. Crystal structure and magnetic properties Nd4Ga2O9 and Sm4Ga2O9[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2004,381(1-2):26-31.
APA Liu, FS.,Liu, QL.,Liang, JK.,Song, GB.,Luo, J.,...&Rao, GH.(2004).Crystal structure and magnetic properties Nd4Ga2O9 and Sm4Ga2O9.JOURNAL OF ALLOYS AND COMPOUNDS,381(1-2),26-31.
MLA Liu, FS,et al."Crystal structure and magnetic properties Nd4Ga2O9 and Sm4Ga2O9".JOURNAL OF ALLOYS AND COMPOUNDS 381.1-2(2004):26-31.
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