Abstract
We review briefly the properties and provide an elementary theoretical descriptionof correlated fermion systems, based mainly on the example of electronic systems undergoing metal-insulator (Mott-Hubbard) transition, which represents a transformationofelectron gas (delocalized states) into atomic configuration with localizedspins. The crystallization of liquid 3He and thedelocalization of nuclei into an extended system (neutron star) are also mentioned as two other examples. The characterization of the Mott-Hubbard transition as a quantum phasetransformation is stressed. In such systems the localized (atomic) and delocalized (plane-wave-like) states can coexist when the transition is of a discontinuous nature, i.e. at non-zerotemperature. We also discuss briefly other condensed fermionic systems such as heavy fermions, high-temperature superconductor systems, systems with a colossal magnetoresistance, and correlated quantum dots, in order to further illustrate the uniqueness of these systems among various Fermi liquids or magnetic semiconductors.
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.
