Coulomb interaction energy of double acceptor in a semimagnetic Quantum Dot

► For smaller QD, h-h interaction is decreased as the magnetic field is increased. ► A turn-over is observed in hole-hole interaction energy for higher magnetic field. ► When magnetic field increases, turn-over increases for smaller radius of the QD. ► Turn-over is due to (i) an attractive force due to confining potential. ► Attractive force due to confinement and repulsive force due to Coulomb interaction.