Magnetic and charge ordering properties of Bi0.6−xEuxCa0.4MnO3 (0.0≤x≤0.6)

We have studied structure, magnetic and transport properties of polycrystalline Bi0.6−xEuxCa0.4MnO3 (x=0.0, 0.1, 0.2, 0.3, 0.4, 0.5 and 0.6) perovskite manganites. Magnetic measurements show that the charge-ordering temperature (TCO) decreases with increasing x up to x=0.4 and then slightly increases with further increasing x up to x=0.6. Further, the antiferromagnetic (AFM) ordering temperature (TN) decreases with increasing x. At T

► We have studied structure, magnetic and transport properties of Bi0.6−xEuxCa0.4MnO3 (0.0≤x≤0.6).
► Substitution of Eu at Bi-site induces a strong interplay between the magnetic and charge-ordering properties.
► TCO decreases with increasing x up to x=0.4 and then slightly increases with further increasing x up to x=0.6.
► The antiferromagnetic ordering temperature (TN) decreases with increasing x.
► The A-site cations size mismatch and 6s2 character of Bi3+ lone pair electron explain variation in physical properties.