Abstract
Abstract This article attempts to review our present understanding of nearly-independent-particle excitations—quasiparticles—in heavy fermion systems. The emphasis is on a realistic, that is material-specific, description of the highly correlated Fermi liquid state which develops at low temperatures. After an initial discussion of Landau's Fermi liquid theory and its application to metals the concept of renormalized band structure calculation is introduced. The fundamental ideas are considered and explicit prescriptions are derived which allow a phenomenological account to be made of the strong local correlations. A comparison is made between the calculated quasiparticle bands and the detailed information now available from Fermi surface studies. Next, the interaction among the quasiparticles is discussed with particular reference to its influence on the electronic compressibility and the spin susceptibility. The correlation-related contribution to the quasiparticle-phonon coupling is derived. The questio...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
