HYBRIDIZATION EFFECT ON THE GROUND STATE OF THE KONDO MODEL FOR TWO KONDO REGIMES UNDER THE APPLICATION OF MAGNETIC FIELD

Okunzuwa I.S. and Azi O.J.

Department of Physics, University of Benin, Benin City, Nigeria.

Department of Physics, Federal University of Petroleum Resources Effurun, Nigeria.

Abstract

In recent years, the Kondo Lattice Model (KLM) has attracted a lot of interest from both the experimental and theoretical points of view. In an effort to gain better understanding and clarify the behaviour of the ground state of this model, the antiferromagnetic and ferromagnetic regimes of the exchange coupling, J, under hybridization effect was considered under the application of the magnetic field, H. For the aniferromagnetic regime (J >0) the ground state was found to be greater than zero while that of the ferromagnetic regime (J<0) was found to be less than zero.

Keywords: Paramagnetism, Ferromagnetism, Ground State energy.