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- W2037259102 abstract "We apply the slave-fermion representation of strongly correlated electrons to the spin-12 infinite-U Anderson lattice near quarter-filling. At the mean-field level we find that one conduction band hybridizes with the local states while the other remains uncoupled. When the Fermi level lies in the up-spin hybridization gap this phase is a partially saturated ferromagnet. In one and two dimensions we find that the spin-wave constant vanishes beyond a certain critical filling. We investigate the hybridization and f-level dependence of this critical electron count for the full range of valence and compare with numerical studies in one and two dimensions." @default.
- W2037259102 created "2016-06-24" @default.
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- W2037259102 date "2002-03-01" @default.
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- W2037259102 title "Slave fermions and the Anderson lattice—ferromagnetism for low electron count in one and two dimensions" @default.
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- W2037259102 doi "https://doi.org/10.1016/s0921-4526(01)01555-1" @default.
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