Abstract
The theoretical method to calculate excitations in solids called LDA (or GGA)-1/2, was developed by the professor Luiz Guimarães Ferreira, from the University of São Paulo, in collaboration with the Group for New Materials and Nanostructures - GMSN. The LDA(GGA)-1/2 method has achieved progressive successes in the description of semiconducting systems, interfaces, magnetic materials, semi…