Exploring Ground State Energies and Electronic Band Structures of Bi₂Se₃ and Bi₂Te₃ Topological Insulators: A First-Principles DFT Approach for Spintronic and Thermoelectric Applications. (2026). Nigerian Journal of Applied Physics, 2(2), 102-109. https://doi.org/10.62292/njap-v2i2-2026-45