Open AccessSuppressed HF Behaviour in the Periodic Anderson Model
Author(s) -
Ikponmwosa Samuel Okunzuwa,
Arthur Imooah Ejere
Publication year - 2018
Publication title -
european scientific journal
Language(s) - English
Resource type - Journals
eISSN - 1857-7881
pISSN - 1857-7431
DOI - 10.19044/esj.2018.v14n12p241
Subject(s) - electron , anderson impurity model , periodic boundary conditions , atomic orbital , eigenvalues and eigenvectors , physics , magnetic field , periodic potential , condensed matter physics , specific heat , fermion , atomic physics , boundary value problem , quantum mechanics
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.