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- W1977703595 abstract "Two complementary analyses for the electronic structure of Ce systems are given. The first is performed from the renormalized density of states (DOS) deduced from the interacting Green{close_quote}s functions. These Green{close_quote}s functions are obtained from a self-energy calculated from a multiband Hubbard Hamiltonian and using the random phase approximation to account for the dynamical f-f screened interactions. The resulting DOS presents agreements and discrepancies with the spectral data yielded by direct and inverse photoemission. The theoretical and experimental f widths next to the Fermi level imply f-electron masses that are in strong contradiction with those obtained from the heavy-fermion specific heat. We have carried out a second analysis that complements the first one, since it considers the spin-exchange between extended states and a spin-field that is completely excluded from the first calculation. By the marriage of the results obtained in the first calculation with those of the second analysis, we can relate the photoemission spectra and de Haas{endash}van Alphen masses with the measurements of the contribution of the low-energy quasiparticles to the specific heat and the magnetic susceptibility. {copyright} {ital 1997} {ital The American Physical Society}" @default.
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- W1977703595 date "1997-07-15" @default.
- W1977703595 modified "2023-09-26" @default.
- W1977703595 title "Interplay between dynamic screenedf-finteraction andsk⋅sfinteraction in Ce systems" @default.
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- W1977703595 doi "https://doi.org/10.1103/physrevb.56.1335" @default.
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