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Understanding Photoemission Spectra in Uranium Based Heavy Fermion Systems
For some time now spectroscopists have been puzzled by the lack of correspondence between Ce-based and U-based heavy fermion (HF) photoemission spectroscopy (PES). In 4f systems (most 4f compounds, not just HF) one generally observes a “two-peaked” structure1 associated with 4f PES, while most (again not just HF) 5f compounds yield a single broad triangular-shaped 5f intensity.2,3 Since there is substantial correspondence in bulk property data (such as specific heat) between 4f and 5f HF systems,4 it was a cause of some concern that PES failed to show this correspondence. Indeed it was difficult to understand how the very large overall widths of 5f spectra can be reconciled with features expected to be at least an order of magnitude narrower.
Understanding Photoemission Spectra in Uranium Based Heavy Fermion Systems
For some time now spectroscopists have been puzzled by the lack of correspondence between Ce-based and U-based heavy fermion (HF) photoemission spectroscopy (PES). In 4f systems (most 4f compounds, not just HF) one generally observes a “two-peaked” structure1 associated with 4f PES, while most (again not just HF) 5f compounds yield a single broad triangular-shaped 5f intensity.2,3 Since there is substantial correspondence in bulk property data (such as specific heat) between 4f and 5f HF systems,4 it was a cause of some concern that PES failed to show this correspondence. Indeed it was difficult to understand how the very large overall widths of 5f spectra can be reconciled with features expected to be at least an order of magnitude narrower.
Understanding Photoemission Spectra in Uranium Based Heavy Fermion Systems
Gupta, L. C. (Herausgeber:in) / Malik, S. K. (Herausgeber:in) / Arko, A. J. (Autor:in) / Yates, B. W. (Autor:in) / Dunlap, B. D. (Autor:in) / Koelling, D. D. (Autor:in) / Mitchell, A. W. (Autor:in) / Lam, D. J. (Autor:in) / Olson, C. G. (Autor:in) / del Guidice, M. (Autor:in)
Theoretical and Experimental Aspects of Valence Fluctuations and Heavy Fermions ; Kapitel: 6 ; 39-46
01.01.1987
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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