Variation in the electronic, mechanical, and structural properties among the polymorphs of bismuth ferrite: a first-principles approachN. V. Srihari, Sanjay Nayak, P. Poornesh and K. K. NagarajaEur. Phys. J. Plus, 138 5 (2023) 465DOI: https://doi.org/10.1140/epjp/s13360-023-04102-1