Synthesis, crystal structure, and physical properties of the type-I clathrate Ba(8-δ)Ni(x)□(y)Si(46-x-y).

@article{Aydemir2012SynthesisCS,
  title={Synthesis, crystal structure, and physical properties of the type-I clathrate Ba(8-δ)Ni(x)□(y)Si(46-x-y).},
  author={Umut Aydemir and Christophe Candolfi and Alim Ormeci and Horst P. Borrmann and Ulrich Burkhardt and Yucel Oztan and Niels Oeschler and Michael Baitinger and Frank Steglich and Yuri Grin},
  journal={Inorganic chemistry},
  year={2012},
  volume={51 8},
  pages={4730-41}
}
Type-I clathrate phase Ba(8)Ni(x)□(y)Si(46-x-y) (□ = vacancy) was obtained from the elements at 1000 °C with the homogeneity range 2.4 ≤ x ≤ 3.8 and 0 ≤ y ≤ 0.9. In addition, samples with low Ni content (x = 1.4 and 1.6; y = 0) and small Ba deficiency were prepared from the melt by steel-quenching. Compositions were established by microprobe analysis and crystal structure determination. Ba(8-δ)Ni(x)□(y)Si(46-x-y) crystallizes in the space group Pm ̅3n (No. 223) with lattice parameter ranging… CONTINUE READING
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