Effect of Ag substitution on structural, magnetic and magnetocaloric properties of Pr 0.6 Sr 0.4– x Ag x MnO 3 manganites

Copper-doped lanthanum manganite La0.65Ce0.05Sr0.3Mn1−xCuxO3 influence on structural, magnetic and magnetocaloric effects

“…In manganites, it is possible to dope at both R-site and Mnsite, much research has been done on the substitution at the Rsite with transition elements [10][11][12] and/or rare-earths Eu, 13 Ce, 14 Pr, 15 which can modify the Mn 3+ -O 2À -Mn 4+ network and in turn will intensively affect the intrinsic physical properties, such as ferromagnetism and (MCE). The substitution at the Mn site in perovskite oxides, with other transition metal ions, [16][17][18][19][20] is more important because it not only modies the Mn 3+ -O 2À -Mn 4+ network but also brings about many new exchange interactions between the Mn ion and the doped transition metal ions.…”

Electrical and thermal properties of Pr0.6Sr0.4−xAgxMnO3 (x = 0.05 and 0.1) manganite

“…Such difference can be explained by grain sizes of particles for each samples. The preliminary studies claimed that the sample with silver amount equal to x = 0.05 contains smaller grains (which size varies between 1 and 1.3 lm) compared to those of x = 0.1 sample (grain size from 1.3 to 1.8 lm) [24]. The resistivity values were found to be smaller for sample with larger grains.…”

A-site ordered state in manganites with perovskite-like structure based on optimally doped compounds Ln0.70Ba0.30MnO3 (Ln = Pr, Nd)

“…A-site ordered state in manganites with perovskite-like structure 2 charge, and spin degrees of freedom is still a matter of discussion. Physical properties of the layered manganites LnBaMn 2 O 6 (demonstrating the ordered cation arrangement in the A sublattice of the perovskite) are one of the most interesting topics in this field [12][13][14][15][16][17][18][19][20][21].…”