Magnetic and dielectric features of Yb³, Dy³, and Nd³ subrogated perovskite calcium manganite bulk materials.

Ali, Ahmed I.; Amin, M. A.; Rashad, M. M.; Basaty, A. B. El

In this report, Yb0.8Ca0.2MnO3, Dy0.8Ca0.2MnO3, and Nd0.8Ca0.2MnO3 perovskite compounds have been felicitously elaborated based on a fertile cost-effective solid-state reaction strategy. Dy0.8Ca0.2MnO3 and Nd0.8Ca0.2MnO3 powders were found to manifest orthorhombic structure, whereas the Yb0.8Ca0.2MnO3 sample was found to demonstrate hexagonal structure. However, the YbO2 secondary impurity phase was evinced with the perovskite Yb0.8Ca0.2MnO3 phase. The samples' SEM images emerged with the uniform pseudo-cubic-like structure, and the grain sizes of the perovskite materials were in the range between 250 and 600 nm. FT-IR spectrums emphasized the band peaks linked with the functional group of the perovskite manganite compounds. Magnetic moment–magnetic field dependence features asserted antiferromagnetic characteristics for Yb0.8Ca0.2MnO3 and Dy0.8Ca0.2MnO3 samples, while the Nd0.8Ca0.2MnO3 sample disclosed paramagnetic phase at room temperature. Dielectric properties elucidated the normal behavior of perovskite at room temperature. This study explores the rule of the rear earth elements on tune the properties of perovskite compounds.

BULK solids; PEROVSKITE; MANGANITE; YTTERBIUM; DIELECTRIC properties; UNIFORM spaces; ANTIFERROMAGNETIC materials

Journal of Materials Science: Materials in Electronics, 2021, Vol 32, Issue 15, p20422

0957-4522

Academic Journal

10.1007/s10854-021-06552-8