4f Shell of Gd2+ and Gd3+ Ions in Sn1-xGdxTe - Resonant Photoemission Study |
| B.J. Kowalski, Z. Gołacki, E. Guziewicz, B.A. Orłowski Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland and R.L. Johnson Universität Hamburg, II Institut für Experimentalphysik, Luruper Chausse 149, 22761 Hamburg, Germany |
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| Resonant photoemission spectra of Sn1-xGdxTe (x=0.02 and 0.08) measured for the photon energy range 142 to 151 eV show the valence band density of states distribution and the Gd 4f derived maximum. The energy position of the J=0 component of the Gd 4f maximum was determined and used as a measure of the Gd 4f shell binding energy. The electrostatic model of core level shifts was used to interpret the difference in the Gd 4f binding energies observed for x=0.02 and x=0.08. |
| DOI: 10.12693/APhysPolA.92.875 PACS numbers: 71.20.-b, 79.60.-i |