Effective Potentials of the Spherical Quantum Dots Modeled by the Spin Density Functional Theory

Abstract

The novel properties of quantum dots revealed the evolution of the bulk electronic structure with increasing size, which has been calculated using spin density functional theory (SDFT). Both the theoretical and experimental information on spherical quantum dots, that is, physical and chemical properties like effective potential, specific shell structure and the structural relationship are sparse. The interaction effects of the transitions in the ground‐state spin configuration as a function of the applied magnetic field are of interesting systems to investigate. Since much work has not been devoted to spherical quantum dots using local spin density approximation (LSDA) of SDFT, we focus our attention on medium‐size quantum dots containing up to 6 electrons. The electronic properties of spherical quantum dots have been carried out for large‐size spherical quantum dots containing up to 10 electrons have been carried out using the SDFT technique.