Self-consistent alloy treatment of the periodic anderson model: Susceptibility and specific heat of intermediate valence compounds

1979 ◽  
Vol 35 (1) ◽  
pp. 7-14 ◽  
Author(s):  
H. J. Leder ◽  
G. Czycholl
Keyword(s):  
Specific Heat ◽  
Anderson Model ◽  
Periodic Anderson Model ◽  
Intermediate Valence ◽  
Self Consistent

Specific heat of the periodic Anderson model at finiteU

2000 ◽  
Vol 62 (3) ◽  
pp. 1485-1488 ◽  
Author(s):  
Hong-Gang Luo ◽  
Shun-Jin Wang
Keyword(s):  
Specific Heat ◽  
Anderson Model ◽  
Periodic Anderson Model

scholarly journals Specific heat of the periodic Anderson model: From weak to strong coupling

2001 ◽  
Vol 64 (11) ◽  
Author(s):  
N. M. R. Peres ◽  
P. D. Sacramento ◽  
M. A. N. Araújo
Keyword(s):  
Specific Heat ◽  
Strong Coupling ◽  
Anderson Model ◽  
Periodic Anderson Model

INVESTIGATION OF THE DENSITY OF STATES IN THE NON-HALF-FILLED TWO BAND PERIODIC ANDERSON MODEL

2006 ◽  
Vol 20 (21) ◽  
pp. 3101-3112
Author(s):  
IGOR KOGOUTIOUK ◽  
HANNA TERLETSKA
Keyword(s):  
Spectral Density ◽  
Density Of States ◽  
Anderson Model ◽  
Applied Pressure ◽  
Band Width ◽  
Green Functions ◽  
Periodic Anderson Model ◽  
Consistent Calculation ◽  
Exchange Effects ◽  
Self Consistent

We study density of states in the symmetrical and asymmetrical two-band periodic Anderson models at various band fillings with self-consistent calculation of the orbital occupancies. The application of the improved truncation approximation for irreducible Green functions that takes into account resonance broadening and band shifting inter-orbital exchange effects, resulted in the appearance of four spectral density moments and four- or five-subbands in the density of states depending upon the parameters of the model. It is shown that closing of the hybridization gap can occur as the result of doping, applied pressure, or change of the f-band width.

scholarly journals Suppressed HF Behaviour in the Periodic Anderson Model

2018 ◽  
Vol 14 (12) ◽  
pp. 241
Author(s):  
Okunzuwa I. S. ◽  
Arthur I. I. Ejere
Keyword(s):  
Magnetic Field ◽  
Specific Heat ◽  
Anderson Model ◽  
Heavy Fermion ◽  
Nearest Neighbors ◽  
Periodic Anderson Model ◽  
Many Body ◽  
The Many ◽  
Heavy Fermion Behavior ◽  
The Magnetic Field

The periodic Anderson model is applied to 4 electrons on 4 sites with periodic boundary conditions. We applied magnetic field to the localized forbitals, Eσf. The number of electrons is taken to be one per site and the interactions between different sites is restricted to nearest neighbors. The many body eigenvalues are calculated exactly using exact diagonalization technique. We find that the specific heat is suppressed by the variation of the band energy of the localized f-orbitals as mediated by the application of the magnetic field, H, under various hybridization energy. A continuous suppression of the specific heat reduces the heavy fermion behavior in the system.

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