Study of the physical properties of La2 − xErxTi2O7 (0 ≤ x ≤ 0.075) compoundsN. Ben Amor, M. Bejar, E. Dhahri, M. Bekri, M.A. Valente and E.K. HlilEur. Phys. J. Appl. Phys., 59 1 (2012) 10601DOI: https://doi.org/10.1051/epjap/2012120142