Abstract
This article reports on the RIXS (Resonant inelastic X-ray scattering), XES (X-ray emission spectroscopy), and XAS (X-ray absorption spectroscopy) of the LaSr2Mn2O7, La0.95Ba0.05MnO3, and La1.2(BaCa)1.8Mn2O7 at 40 K, 100 K and 300 K. The RIXS spectra of these samples show the presence of Mn in different valence states (Mn2+, Mn3+, and Mn4+) which is associated with the Jahn-Teller distortion due to overlapping between O2− and the unpaired electrons of transition metal Mn. It has also been noticed that the distortion observed in different valence states of Mn with O2− is found to be suppressed with dropping and the temperature. So, based on aforementioned studies, the Manganites have been considered as a strongly correlated magnetic system which would be useful in magnetic device applications.
•Studies on the RIXS, XES, XAS of single crystal LaSr2Mn2O7, La0.95Ba0.05MnO3, and La1.2(BaCa)1.8Mn2O7.•Different valence states of Mn have been probed under different temperatures.•Jahn-Teller distortion have been observed in Mn-O bonds due to overlapping of 3d and 2p states, respectively.•Studies of different electronic structure reflect manganites as strongly correlated magnetic system.•Suitable and potential candidates for magneto-caloric, magnetoresistance and magnetic device applications.