Modified black hole solution with a background Kalb–Ramond field L. A. Lessa, J. E. G Silva, R. V. Maluf and C. A. S. Almeida Eur. Phys. J. C, 80 4 (2020) 335 Published online: 22 April 2020 DOI: 10.1140/epjc/s10052-020-7902-1