scholarly journals Renormalization of the periodic Anderson model: An alternative analytical approach to heavy-fermion behavior

2005 ◽  
Vol 71 (15) ◽  
Author(s):  
A. Hübsch ◽  
K. W. Becker
Keyword(s):  
Anderson Model ◽  
Heavy Fermion ◽  
Analytical Approach ◽  
Periodic Anderson Model ◽  
Heavy Fermion Behavior

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.

Superconducting instability in the periodic Anderson model

1998 ◽  
Vol 78 (4) ◽  
pp. 365-374 ◽  
Author(s):  
A. N.Tahvildar-Zadeh, M. H. Hettler, M
Keyword(s):  
Anderson Model ◽  
Periodic Anderson Model
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