Influence of Yb on Valence Band Density of States of CdYbTe and PbYbTe - a Resonant Photoemission Study |
| K. Szamota-Sadowska, B.J. Kowalski, E. Guziewicz, B.A. Orłowski, J. Sadowski, Z. Gołacki Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland J. Ghijsen Facultes Universitaires Notre-Dame de la Paix, Laboratoire Interdisciplinaire de Spectroscopie Electronique, 61 rue de Bruxelles, 5000 Namur, Belgium R.L. Johnson Universität Hamburg, II Institut für Experimentalphysik, Luruper Chaussee 149, 22761 Hamburg 50, Germany R. Belkhou, D. Radosavkič, D. Martinotti, N. Barrett and C. Guillot Laboratoire pour l'Utilisation du Rayonnement Électromagnétique, Bat. 209 D, Centre Universitaire Paris-Sud, 91405 Orsay Cedex, France and DRECAM-SRSIM, CE Saclay 91191 Gif sur Yvette, France |
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| Photoemission measurements using synchrotron radiation were performed on PbYbTe (bulk crystal) and CdYbTe (MBE thin film). The resonant enhancement of the photoemission was applied for investigation of the contribution of Yb 4f electrons to the valence band. The set of the energy distribution curves was collected for energies in the region close to the 4d-4f Fano transition. The Yb 4f14 were observed at the binding energies close to the edge of the valence band while the 4f13 states were revealed deep in the valence band. |
| DOI: 10.12693/APhysPolA.90.943 PACS numbers: 61.72.Vv |