On Suhl's approach to the Kondo problem |
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Authors: | W. Brenig W. Götze |
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Affiliation: | 1. Max-Planck-Institut für Physik, Deutschland 2. Astrophysik and Physik-Department der TH, München
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Abstract: | A model for the Kondo problem is studied in which the impurities are envisaged as a gas of infinitely heavy particles embedded in the gas of conduction electrons. Fors-wave interactions and low impurity concentrations the electron self-energy is expressed by the impurity-electron scattering matrix which is also shown to determine the thermodynamic potantial. Using standard Goldstone diagrams Suhl's equation is derived by the summation of leading singular graphs. For a special density of states, vanishing magnetic field, and no potential scattering the dispersion equation is solved exactly. |
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