Electrical Resistivity and Electronic Structure of the Tb_{x}Gd_{1-x}Ni_3 System

• Authors: G. Chełkowska , A. Bajorek , A. Chrobak , M. Kwiecień-Grudziecka
• Languages of publication: EN

Abstracts

EN

In the paper the electric properties and electronic structure of the intermetallic Tb_{x}Gd_{1-x}Ni_3 compounds are presented. The partial replacement of Gd by Tb atoms causes the decrease of the Curie temperature (T_{C}) and the increase of the residual resistivity. According to the Matthiessen rule the scattering mechanisms in ρ(T) have been analyzed. Moreover, the reduced form of the electrical resistivity ρ_{Z} (T - T_{0}) indicates a deviation from the linearity for x > 0.2. This kind of behaviour can be attributed to density of d states near by the Fermi level (E_{F}) which are dominated by Ni 3d states. The valence band spectra as well as the core level lines have been analyzed as the influence of Tb/Gd substitution on the electronic structure.

Keywords

EN

71.20.Eh; 71.20.Lp; 72.15.-v; 72.10.Di; 79.60.-i

Discipline

• 72.15.-v: Electronic conduction in metals and alloys
• 71.20.Lp: Intermetallic compounds
• 71.20.Eh: Rare earth metals and alloys
• 79.60.-i: Photoemission and photoelectron spectra(for photoelectron spectroscopy, see 87.64.ks in biological physics; 82.80.Pv in chemical analysis)
• 72.10.Di: Scattering by phonons, magnons, and other nonlocalized excitations(see also 71.45.-d Collective effects in electronic structure of bulk materials)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 5-6
• Pages: 1139-1141

Dates

published

2012-05

Contributors

author

G. Chełkowska

• August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

A. Bajorek

• August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

A. Chrobak

• August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

M. Kwiecień-Grudziecka

• August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

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Identifiers

DOI

10.12693/APhysPolA.121.1139