Electronic, structural and paramagnetic properties of magnesium telluride

• Main Author: J.O. Akinlami
• Format: Article
• Language: English
• Published: National Academy of Sciences of Ukraine. Institute of Semi conductor physics. 2019-03-01
• Series: Semiconductor Physics, Quantum Electronics & Optoelectronics
• Subjects: aiibiv semiconductor; magnetic properties; electronic structure; density of states
• Online Access: http://journal-spqeo.org.ua/n1_2019/P005-010abstr.html

This study has examined the ground-state electronic, structural and, in addition, paramagnetic properties of semiconductor MgTe in its zinc blende phase by using the density functional theory (DFT). Exchange-correlation potentials have been approximated with the Projected Augmented Wave (PAW) Generalized Gradient Approximation (GGA). From the calculated lattice parameter, we determined the bulk modulus and first pressure derivative. Also, reported are other ground state properties: density of state (DOS), band structure, projected DOS (PDOS) and magnetic properties. A direct large band-gap of 2.358 eV was observed from the band structure that has close concurrence with former reported values. Although this value is also smaller than the reported experimental values, it is the closest of all the calculated values. The magnetic state of the compound was observed to be paramagnetic in the ground state.