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|Title: ||Mottness scenario for the non-Fermi liquid phase in heavy fermions|
|Authors: ||Rozenberg, Marcelo J.|
|Issue Date: ||30-Apr-2009 |
|Abstract: ||In this thesis we describe a new theoretical approach to the problem of non-Fermi liquid
behavior in heavy fermion systems.
For almost forty years our comprehension of the metallic behavior in many materials has
been founded on the Landau physical intuition about interacting Fermi systems [6, 69]. The
idea of Landau, that interacting fermions could be regarded as free particles with renormalized
parameters, is at the basis of the standard picture of the solids in terms of single independent
electrons delocalized throughout the systems. The extraordinary success of this scenario is
demonstrated by the impressive number of predictions and results, on which has root a large
part of the actual technology.
The Fermi-liquid concept has been also extended to systems showing a strong electronelectron
interaction, i.e. strongly correlated electrons systems. Under suitable conditions the
low temperature metallic properties of these systems can be interpreted in terms of renormalized
|Description: ||20. ciclo|
|Appears in Collections:||Tesi di dottorato in scienze matematiche e fisiche|
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