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Alexander Cyril Hewson, Imperial College of Science, Technology and Medicine, London. Subjects: Physics And Astronomy, Condensed Matter Physics, Nanoscience and Mesoscopic Physics, Theoretical Physics and Mathematical Physics. 3 - The Kondo Problem. The Kondo Problem to Heavy Fermions - by Alexander Cyril Hewson January
Meine Mediathek Hilfe Erweiterte Buchsuche. Cambridge University Press Amazon.
The Kondo Problem to Heavy Fermions. Alexander Cyril Hewson.
This book deals with the concepts and techniques that have been developed to meet this challenge and with their application to the interpretation of experiment. The author surveys in detail the many-body techniques, scaling, renormalization group, Fermi liquid and Bethe ansatz, which lead to a solution of the Kondo problem for most of the theoretical models. The book also deals with special techniques for N-fold degenerate models for rare earth magnetic impurities.
The many-body techniques developed to deal with strong correlation impurity problems have also been extended to provide a partial explanation of heavy fermion behavior. Inhalt Models of Magnetic Impurities.
Nfold Degenerate Models I. Heavy Fermion compounds are a special type of intermetallic compounds, which contain partially filled 4f or 5f orbitals.
Because the f-orbitals are only partially filled and the f-orbitals are spatially strongly confined, which is equivalent to having localized magnetic moments in a metal. It is the spin-exchange between the localized magnetic moment in the f-shell and the conduction electrons which lead to a hybridization gap in the vicinity of the Fermi surface, leading to a hugely increased effective mass for these electrons, which can be several hundred times larger than the bare electron mass.
The effect of the heavy fermions is typically measured with quantities which are proportional to the density of states at the Fermi surface, such as resistivity or magnetic susceptibility. In our group we developed an optical method for investigating the dynamics of these strongly correlated ground states. Proceedings of the Japan Academy, Series B.
Journal home Journal issue About the journal. Keywords: Resistance minimum , magnetic impuirity , heavy fermion , Kondo effect. Published: received: September 12, Released: December 12, accepted: September 27, [Advance Publication] Released: - corrected: -.
Article overview. References 6.
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