Valence Band and Core Levels of Ce_5Ni_2Si_3 Crystal Studied by X-ray Photoemission Spectroscopy

• Authors: T. Toliński , A. Kowalczyk , G. Chełkowska , M. Mihalik , M. Timko
• Languages of publication: EN

Abstracts

EN

The crystal of Ce_5Ni_2Si_3 was prepared by the Czochralski method. The X-ray photoemission spectroscopy was measured for the valence band and the core levels. Based on the Ce(3d) doublet and its satellites a small value of the hybridization parameter of the f-states with the conduction electrons Δ=4 meV and the f-occupancy n_f close to 1 were found. X-ray photoemission spectroscopy shows that the region between 0 and 3 eV is predominated by the Ni(3d) and Ce(4f) peaks. Some features of the multiplet structure of the Ce(4f) states are also visible close to the Fermi level.

Keywords

EN

71.20.Eh; 82.80.Pv

Discipline

• 71.20.Eh: Rare earth metals and alloys
• 82.80.Pv: Electron spectroscopy (X-ray photoelectron (XPS), Auger electron spectroscopy (AES), etc.)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 327-330

Dates

published

2008-01

received

2007-07-09

Contributors

author

T. Toliński

• Institute of Molecular Physics, PAS, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

A. Kowalczyk

• Institute of Molecular Physics, PAS, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

G. Chełkowska

• Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland

author

M. Mihalik

• Insitute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 04353 Košice, Slovakia

author

M. Timko

• Insitute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 04353 Košice, Slovakia

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Identifiers

DOI

10.12693/APhysPolA.113.327