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RESEARCH PRODUCT

Fermion Condensation in Strongly Interacting Fermi Liquids

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This article discusses the construction of a theory which is capable to explain so-called non-Fermi liquid behavior of strongly correlated Fermi systems. We show that such explanation can be done within the framework of a so-called fermion condensation approach. In this approach, as a result of fermion condensation quantum phase transition, ordinary Landau quasiparticles do not decay, but reborn, gaining new properties, as Phoenix from the ashes. The physical reason for that is altering of Fermi surface topology. To be more specific, in contrast to standard Landau paradigm stating that the quasiparticle effective mass does not depend on external stimuli like magnetic field and/or temperature, the effective mass of new quasiparticles strongly depends on them. Our extensive analysis of experimental data gathered on strongly correlated Fermi systems of quite different microscopic nature, shows that the multitude of their non-Fermi liquid properties are due to FC occurrence in them. Fermion Condensation in Strongly Interacting Fermi Liquids. Available from: https://www.researchgate.net/publication/321313427_Fermion_Condensation_in_Strongly_Interacting_Fermi_Liquids [accessed Jun 07 2018].