The magnetic properties of a quantum dot in a magnetic field

Abstract

We calculate the magnetization and susceptibility of two interacting electrons con ned in a quantum dotpresented in a magnetic eld by solving the Hamiltonian using the exact diagonalization method. We investigate thedependence of the magnetization and susceptibility on temperature, magnetic eld, and con ning frequency. The singlet-triplet transitions in the ground state of the quantum dot spectra and the corresponding jumps in the magnetizationcurves are shown. The comparisons show that our results are in very good agreement with reported works