scholarly journals Ground-state phase diagram of the Kondo lattice model on triangular-to-kagome lattices

2013 ◽  
Vol 63 (3) ◽  
pp. 405-408 ◽  
Author(s):  
Yutaka Akagi ◽  
Yukitoshi Motome
Keyword(s):  
Phase Diagram ◽  
Ground State ◽  
Lattice Model ◽  
Kondo Lattice ◽  
Ground State Phase Diagram ◽  
Kondo Lattice Model

VARIATIONAL THEORY OF CORRELATED FERMI-LIQUID STATE IN THE KONDO LATTICE MODEL

1991 ◽  
Vol 05 (01n02) ◽  
pp. 289-308 ◽  
Author(s):  
Patrik FAZEKAS ◽  
Hiroyuki SHIBA
Keyword(s):  
Ground State ◽  
Lattice Model ◽  
Fermi Liquid ◽  
Kondo Lattice ◽  
Variational Theory ◽  
Conduction Electrons ◽  
Kondo Lattice Model ◽  
Liquid Type ◽  
Electron Clouds ◽  
Variational Wave

A variational wave function is constructed and studied for the spin-compensated Fermi-liquid-type ground state in the Kondo lattice model. The spins of the localized f-electrons are compensated by overlapping conduction-electron clouds. In accordance with Luttinger’s theorem, the volume enclosed by the Fermi surface corresponds to the total number of electrons, i.e., it includes the f-electrons as well as the conduction electrons. An approximate analytic treatment of the correlated heavy Fermi liquid is given by using the Gutzwiller approximation.

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