Heavy fermions in the Kondo lattice as n
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Yu. Kagan; K.A. Kikion; N.V. Prokof'ev
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Article
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1992
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Elsevier Science
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English
β 498 KB
The origin of heavy fermions in the f-electron compounds with nearly integer valence is discussed. General arguments in favor of uncharged Fermi excitations of spin origin as quasiparticles giving a main contribution to low-temperature thermodynamics are presented. Various experiments (frequency dep