Magnetic field Effect on the Coulomb Interaction of Acceptors in Semimagnetic Quantum Dot.

The Coulomb interaction of holes in a Semimagnetic Cd1-xMnxTe/CdTe Spherical and Cubical Quantum Dot (SMQD) in a magnetic field is studied using variational approach in the effective mass approximation. Since these holes in QD show a pronounced collective behavior, while distinct single particle phenomena is suppressed, their interaction in confined potential becomes very significant. It has been observed that acceptor-acceptor interaction is more in cubical QD than in spherical QD which can be controlled by the magnetic field. The results are presented and discussed. [ABSTRACT FROM AUTHOR]