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INVESTIGATION OF THE ELECTRONIC AND MAGNETIC PROPERTIES OF THE ALABANDITE MINERAL USING DFT AND DFT+U METHODS

DFT, DFT+U, Quantum ESPRESSO, ELF map, electronic structure, magnetic properties, chemical bonding, magnetic moment.

Authors

In this theoretical study, the electronic structure, charge distribution, magnetic moment, and types of chemical bonding present in the alabandite mineral were investigated using Density Functional Theory (DFT) and the Hubbard-corrected DFT+U method. A comparative analysis of the DFT and DFT+U methods revealed that α-MnS exhibits antiferromagnetic behavior, with the resulting magnetic moment - i.e., spontaneous magnetization - equal to 0 µB. The analysis of the Electron Localization Function (ELF) indicated the presence of both covalent and ionic bonds in the sample.