Correlated many-electron states in a quantum dot containing a single magnetic impurity

The few-electron states of a parabolic confined quantum dot is studied in the presence of a magnetic ion. The electrons interact with a single magnetic ion (Mn2+) which is located in the quantum dot at arbitrary position. The local Zeeman spin splitting is calculated for different numbers of electrons (N-e=1,2,3,...,10). The effect of the position of the magnetic ion on the energy levels (both ground state and excited states) is investigated. We calculate the heat capacity as a function of temperature, the position of the impurity, and the Coulomb strength.