Crystal structure, electron structure and physical properties of RM₅Si₃ compounds, R = Y, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu;

M = Ni, Co

Chem. Met. Alloys 2 (2009) 18-24

https://doi.org/10.30970/cma2.0081

Yu. GORELENKO, R. MATVIISHYN, I. SHCHERBA, V. PAVLYUK, R. SERKIZ

RM₅Si₃ intermetallic compounds (R = a heavy rare earth metal or yttrium, M = Ni or Co) were synthesized by arc melting. X-ray phase and structure analyses were used to determine the composition of the samples. The crystal structure was refined for some of the compounds and the elemental composition of the compounds was confirmed by scanning electron microscopy. X-ray emission spectral studies of the Si Kβ_1,x-, Si L_II,III-, M Kβ_2,5-, and M Lα-lines were used to establish the valence band structure, and electrical and magnetic properties were investigated.

The spectra of the RNi₅Si₃ (R = Y(A), Gd(B), Tb(C), Dy(D)) compounds shown on a unified energy scale (full line Si Kb_1,х, dashed line Si L_II,III, dash-dotted line Ni Kβ_2,5, dotted line Ni La_1,2).

Keywords

Crystal structure / Intermetallic compounds / X-ray spectra / Electric properties / Magnetic susceptibility