Theoretical study of the magnetic properties and the magnetocaloric effect in lanthanum manganite lacunar compounds

Study of the Magnetocaloric Effect and Critical Behavior in Double Perovskite Manganese Oxides Pr 1.5 A 0.5 Mn 2 O 6 (A=Mg, Ba)

“…Below T C , the plots show a sharp increase in M with µ 0 H, tending toward saturation and exhibiting ferromagnetic behavior. The partial saturation that has been observed at low temperatures can be attributed to the competition between antiferromagnetic and ferromagnetic clusters within the sample [11]. In all samples, no signi cant hysteresis was observed in the M-µ 0 H curves below and around T C , suggesting the possible presence of a magnetic eld driven second-order phase transition in the system [12] .…”

Crystal structure, composition and valence state of cations in mixed-valence A1−xCdxMnO3 (A=Pr, La) ceramics

“…The initial interest in these compounds stemmed from the discovery of a colossal magnetoresistance effect [3][4][5][6]. Later, a variety of intriguing magnetic and electrical effects were uncovered in these compounds [7][8][9][10][11][12][13][14][15][16], including the observation of both positive and negative temperature resistance coefficients [17], metal-insulator transitions [18], ferromagnetic-paramagnetic transitions [19,20], and charge ordering [21,22]. These properties make these materials promising for use in magnetic sensors [23], supercapacitors [24], and infrared bolometers [25,26].…”