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YNi4Cu: XPS measurements and electronic structure calculation |
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| Authors: | T Toliński M Pugaczowa-Michalska G Chełkowska A Kowalczyk |
| Institution: | 1. Institute of Molecular Physics, Polish Academy of Sciences (PAS), Smoluchowskiego 17, 60-179 Poznań, Poland;2. Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland |
| Abstract: | The valence band and the core levels of the YNi4Cu compound are studied using the X-ray photoemission spectroscopy. The valence band is compared with the theoretical calculation by the spin-polarized Tight Binding Linear Muffin Tin Orbital method. The dominance of the Ni 3d and Cu 3d states down to 5 eV below the Fermi level is found. The modification of the bands’ widths and positions can be well explained by the d–d repulsion model. The Ni 2p and Y 3d peaks resemble the results for pure metals. |
| Keywords: | X-ray photoemission Electronic structure Intermetallic compounds |
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