Magnetism and electronic structure of RTIn (R = Ce,
Pr, Nd; T = Ni, Cu, Pd, Au) ternary compounds
Chem.
Met. Alloys 1
(2008) 92-96
https://doi.org/10.30970/cma1.0011
Ł. GONDEK, A. SZYTUŁA,
D. KACZOROWSKI, Ya. KALYCHAK, B. PENC,
J. HERNANDEZ-VELASCO, Yu. TYVANCHUK
Magnetic and X-ray
photoemission spectroscopy (XPS) measurements were performed on polycrystalline
samples RTIn where R is Ce, Pr, Nd and T is Ni, Cu, Pd, Au. All these compounds
crystallize in the hexagonal ZrNiAl-type crystal structure. The magnetic data
indicate various magnetic properties. Among the CeTIn compounds those with T =
Ni and Cu are paramagnets down to 1.9 K, while those with T = Pd and Au order
antiferromagnetically at low temperatures. Both PrTIn (T = Ni, Au) phases are
paramagnets, while the NdTIn compounds are ferromagnetic for T = Ni and Pd,
antiferromagnets for T = Cu and paramagnets for T = Au. The analysis of the XPS
data concentrates on the valence bands and R 3d5/2 and R 3d3/2
spectra. The valence band spectra indicate a strong hybridization of the R
Magnetic ordering temperatures as a function of the de Gennes factor for
the RTIn compounds.
Keywords
Rare earth alloys and compounds / Intermetallics / Magnetically ordered materials / Magnetic measurements / Neutron diffraction / Electronic properties