Study of high temperature metal-insulator phase transition in La1−xCaxMnO3 employing in-situ ultrasonic studies

Impact of Ni doping on La0.7Sr0.3Ni Mn1−O3 perovskite manganite materials

“…From the earlier phase transition studies [24,36], it is confirmed that the temperature at which the velocity is minimum in the anomalous region (Zone II) is the Curie temperature reinforce the AFM phase [24].When Ni 2+ concentration increases, more Mn 4+ ions are introduced into the lattice and hence, the concentration of Mn 3+ ions is decreased. It is known that the electron-phonon interaction due to JT distortion leads to the localisation of charge carriers and weakens the importance of DE interaction and disfavours the metallicity and ferromagnetism [37].…”

Effect of exceeding the concentration limit of solubility of silver in perovskites on the dielectric and electric properties of half doped lanthanum–calcium manganite

“…Tunable capacitance is not only the motivation but the obtained results in some compound permit to estimate if these materials are promising for tunable capacitor applications [1]. La 1-x Ca x MnO 3 (LCMO) perovskite manganites have been the subjects of intense research efforts [2][3][4][5][6][7][8][9][10]. LCMO and doped LCMO systems exhibit several transport and mangnetic properties.…”

Hybrid Electrochemical Behaviour of La1-xCaxMnO3 Nano Perovskites and Recycled Polar Interspersed Graphene for Metal-Air Battery System

“…Sample preparation.-La 1-x Ca x MnO 3 nano-perovskite ceramic samples with distinctive proportions of x, (x = 0.70, 0.80 and 0.90), hereafter named as a1, a2 and a3 respectively were synthesised using an ultra-sonochemical reactor employing solid state technique. 37 Authentic analytical pure grades of lanthanum nitrate La(NO 3 ) 3 (99.9% Merck, USA), manganese carbonate Mn 2 (CO 3 ) 3 (99.9% Sigma-Aldrich, USA) and calcium nitrate (99% Himedia, India) powders in stoichiometric ratios were weighed in a digitalized balance and blended using a silica-agate mortar. The similar procedure was adapted to synthesis the a1, a2 and a3 perovskite.…”