CeNi3-type ternary phases in the RNiGa systems (R ≡ Y, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu)

Ternary gallides RNi3−xGax (R ≡ Y, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) have been investigated by means of X-ray phase and structure analyses. The new compounds were all found to be isotypic; in the case of YNi2.5Ga0.5 the structure type was refined from powder diffraction data (CeNi3 type of...

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Bibliographic Details
Published inJournal of alloys and compounds Vol. 219; no. 1-2; pp. 222 - 224
Main Authors Wasylechko, L.O., Grin, Yu.N., Fedorchuk, A.A.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.03.1995
Subjects
Crystal structure
Homogeneity ranges
Lattice parameters
Resistivity
Ternary phases
Homogeneity ranges
Lattice parameters
Ternary phases
Resistivity
Crystal structure
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Summary:Ternary gallides RNi3−xGax (R ≡ Y, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) have been investigated by means of X-ray phase and structure analyses. The new compounds were all found to be isotypic; in the case of YNi2.5Ga0.5 the structure type was refined from powder diffraction data (CeNi3 type of structure, space group P63/mmc, Z = 6, R1 = 0.124). At 600 °C all the RNi3−xGax compounds have homogeneity ranges between x = 0.12 and 1.00. The electrical properties of the DyNi2.68Ga0.32, HoNi2.2Ga0.8, TmNi2.44Ga0.56 and LuNi2.44Ga0.56 compounds were investigated in the temperature range 77 K < T < 363 K. All of them have metallic-type conductivity.
ISSN:0925-8388
1873-4669
DOI:10.1016/0925-8388(94)05040-6