A comparative study of the structural, electronic, magnetic properties and magnetocaloric effect of perovskite LaRO3 (R = Mn, Cr and Fe)

Expansion of the multifunctionality in off-stoichiometric manganites using post-annealing and high pressure: physical and electrochemical studies

“…LMO-1150 shows the largest DS max M = À2.142 J (kg K) À1 under 1 T at T C = 228 K among the studied ceramics under the same field and it is higher than that for similar lanthanum-manganese compounds (Table 4). [68][69][70][71][72][73] It makes them promising materials for practical applications with the possible adaptation for magnetic refrigerators, magnetic and electric field sensors, and nonlinear optical systems. 38,74,75 Such large values of the MCE in LMO-1150 exhibit an optimal order/disorder ratio caused by, on the one hand, the conventional DE via Mn 3+ 2 O 2À 2 Mn 4+ and multiple DE via Mn 3+ 2 O 2À 2 Mn 2+ 2 O 2À 2 Mn 4+ , 28 and, on the other hand, the structural defects and distortions.…”

Magnetic Properties and Mössbauer Study of Perovskite LaFeO3 and LaFe0.5Cr0.5O3

“…[ 4 ] Below the magnetic transition point, LaFeO 3 exhibits G‐type antiferromagnetism due to the dominance of antiferromagnetic Fe 3+ ()–O 2− –Fe 3+ () superexchange interactions in theory. [ 5 ] However, small particle sizes [ 6 ] and uncompensated surface spins [ 7 ] tend to give rise to the expected ferromagnetism, which is insufficient for higher‐level applications. For a long time, doping has been regarded as a great method to improve physical properties of matrixes.…”

Tailoring of structural, morphological, electrical, and magnetic properties of LaMn1−xFexO3 ceramics

“…LaMnO 3 (LMO) is an A-type antiferromagnetic perovskite material that shows orthorhombic crystal symmetry only around its stoichiometric composition. [12][13][14] The magnetoresistance properties of LMO make it an important multiferroic material that can be exploited for the use of LMO as electrode material in supercapacitors. 15 On the other hand, LaFeO 3 (LFO) is an orthoferrite, has a Néel temperature (T N ) of roughly 738 K, and a G-type antiferromagnetic structure.…”