X-Ray Magnetic Circular Dichroism Studies on CeNi_4B

• Authors: T. Toliński , J. Cezar , H. Wende , A. Kowalczyk , K. Baberschke
• Languages of publication: EN

Abstracts

EN

The CeNi_4B compound is a mixed-valence system. It is a paramagnet with μ_{eff}= 0.52 μ_{B}/f.u. and the paramagnetic Curie temperature θ= -10.7 K. In the present research we complete our previous magnetic susceptibility and X-ray photoemission measurements with new studies by the X-ray magnetic circular dichroism method. The observation of the Ce M_{4,5} edges carried out with X-ray magnetic circular dichroism confirms the mixed-valence state deduced previously from X-ray photoemission spectroscopy. Moreover, we report on the measurements of the Ni L_{2,3} edges, which enable verification of the Ni contribution to the magnetism of this compound.

Keywords

EN

71.20.Lp; 75.20.Hr; 78.70.Dm; 79.60.-i; 78.20.Ls

Discipline

• 78.70.Dm: X-ray absorption spectra
• 71.20.Lp: Intermetallic compounds
• 78.20.Ls: Magneto-optical effects(for magneto-optical devices, see 85.70.Sq)
• 79.60.-i: Photoemission and photoelectron spectra(for photoelectron spectroscopy, see 87.64.ks in biological physics; 82.80.Pv in chemical analysis)
• 75.20.Hr: Local moment in compounds and alloys; Kondo effect, valence fluctuations, heavy fermions(for Kondo effect and scattering mechanisms in electronic conduction, see 72.15.Qm and 72.10.Fk)

• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 1
• Pages: 129-131

Dates

published

2009-01

Contributors

author

T. Toliński

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

J. Cezar

• E.S.R.F., 6 rue Jules Horowitz, 38043 Grenoble Cedex, France

author

H. Wende

• Universität Duisburg-Essen Fachbereich Physik, Lotharstr. 1, 47048 Duisburg, Germany

author

A. Kowalczyk

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

K. Baberschke

• Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin-Dahlem, Germany

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Identifiers

DOI

10.12693/APhysPolA.115.129