Abstract: We present a theoretical study of the magnetization (M) and the
magnetic susceptibility (χ) of single electron Gaussian quantum dot (GQD) presented in a
magnetic field. We solve the Hamiltonian of this system including the spin by using exact
diagonalization method. All the energy matrix elements are obtained in closed analytic
form. We investigate the effects of temperature, magnetic field and confining potential
depth on the behavior of magnetization and magnetic susceptibility of the quantum dot.
Comparisons show that our results are in very good agreement with reported works.