Effects of film growth conditions on many-body photoemission satellites in heavy rare earths |
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Authors: | L Dottl M Onellion Dongqi Li P A Dowben |
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Institution: | (1) Department of Physics, University of Wisconsin, 53706 Madison, WI, USA;(2) Department of Physics, Syracuse University, 13244 Syracuse, NY, USA |
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Abstract: | Using angle-resolved synchrotron-radiation photoemission, we have studied the many-body satellite spectra of gadolinium and dysprosium overlayers on several substrates, including Cu(100), Ni(111), Si(111) and W(110). In addition to a 6 eV valence band satellite previous reported, we report the observation of a constant-kinetic-energy (CKE) satellite. We propose a model that describes both the 6 eV satellite as well as the newly observed CKE satellite. Our model explains in a single picture the presence and absence of the 6 eV satellite for a variety of film growth conditions. |
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