Crystal structure, interatomic distances, and X-ray spectra of the compounds RM2Si2, R2M3Si5, and RMSi3 (R = rare earth, M = transition metal)

被引：0
|
作者：
Bodak, OI
Gorelenko, YK
Yarovets, VI
Shcherba, ID
Mel'nik, GA
Dobryanskaya, LO
Skolozdra, RV
机构：
[1] Franko State Univ, UA-290005 Lviv, Ukraine
[2] Lviv State Polytech Univ, UA-290646 Lviv, Ukraine
来源：
INORGANIC MATERIALS | 1999年 / 35卷 / 04期
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
It was shown by analyzing the average interatomic distances in RM2Si2, R2M3Si5, and RMSi3 (R = Sc, Y, Ln; M = transition metal) that the M-Si bonds in these ternary compounds are predominantly covalent and the R-Si and M-R bonds are predominantly metallic. YNi2Si2 and YNiSi3 were studied by x-ray emission spectroscopy. The total and partial densities of states in YNi2Si2 were calculated by the linearized muffin-tin-orbital method. The Ni-Si bonds in YNiSi3 are of more covalent character than those in R2Ni3Si5, and the Si-Si bonds in YNiSi3 are of more covalent character than those in YNi2Si2 and R2Ni3Si5.
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页码：360 / 367
页数：8
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