Electrical, magnetic, and magnetotransport behavior of inhomogeneous Nd1-xCaxMnO3 (0.0 ≤ x ≤ 0.8) manganites

Observation of enhanced magnetic entropy change near room temperature in Sr-site deficient La0.67Sr0.33MnO3 manganite

“…res.in; vasu.mutta@gmail.com; Tel: +91 4712515491 properties due to the difference in the average A-site ionic radius. [22][23][24][25][26][27] It is understood that, in doped manganites, the double exchange (DE) interaction via the Mn 3+ -O 2À -Mn 4+ ions is responsible for the ferromagnetic (FM) behaviour and the superexchange (SE) interaction through Mn 3+ -O 2À -Mn 3+ and Mn 4+ -O 2À -Mn 4+ ions are responsible for the antiferromagnetic (AFM) behaviour. This indicates that the strength of the competing exchange interactions and magnetic properties are eventually affected by different factors such as rare Earth substitution at the A-site, replacement of manganese by other transition elements, the introduction of deciency at A and A 0sites, etc.…”