Multiplet Effects in the Quasiparticle Band Structure of the $f^1-f^2$ Anderson Model

Details Multiplet Effects in the Quasiparticle Band Structure of the $f^1-f^2$ Anderson Model Multiplet Effects in the Quasiparticle Band Structure of the $f^1-f^2$ Anderson Model

1994-11-21

arxiv.org/abs/cond-mat/9411087v1

Phys Rev B 51, 6167 (1995)

Physics

Condensed Matter

9 pages, revtex, 3 uuencoded postscript figures attached at end

Scientific paper

10.1103/PhysRevB.51.6167

In this paper, we examine the mean field electronic structure of the $f^1-f^2$ Anderson lattice model in a slave boson approximation, which should be useful in understanding the physics of correlated metals with more than one f electron per site such as uranium-based heavy fermion superconductors. We find that the multiplet structure of the $f^2$ ion acts to quench the crystal field splitting in the quasiparticle electronic structure. This is consistent with experimental observations in such metals as $UPt_3$.

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