Magnetic, electric and electronic structure properties of the Gd(Ni1-xCox)3 compounds

Grażyna Chełkowska 1Marzena Kwiecień 1Katarzyna Rabijasz 

1. University of Silesia, August Chełkowski Institute of Physics, Department of Solid State Physics, Uniwersytecka 4, Katowice 40-007, Poland

Abstract

We report results of measurements of the magnetic susceptibility, the electrical resistivity, the crystal and electronic structures of the polycrystalline intermetallic Gd (Ni1-xCox)3 compounds. The influence of substitution of Co for Ni atoms is reflected in an increase of the lattice parameters and unit cell volume. The Curie temperature TC changes between 114 K for GdNi3 and 615 K for GdCo3. The electronic structure have been studied by using X-ray Photoelectron Spectroscopy (XPS). The XPS spectra in the valence band region show a hybridization of the states near the Fermi level (EF). We also observe a remarkable decrease of the density of states near EF and the shift of 4f Gd peaks in the energy scale for the Co – rich compounds.

 

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Presentation: poster at E-MRS Fall Meeting 2005, Symposium B, by Grażyna Chełkowska
See On-line Journal of E-MRS Fall Meeting 2005

Submitted: 2005-05-19 14:06
Revised:   2009-06-07 00:44