Influence of magnetic (Fe+3) and non-magnetic (Ga+3) ion doping at Mn-site on the transport and magnetic properties of La0.7Ca0.3MnO3

Influence of polarization and iron content on the transport properties of praseodymium–barium manganite

“…So, activation energy increases with Fe concentration but without significant variation. In our case, when xr0.10 activation energy values are in good agreement with Sahasrabudhe et al [40]. For x 40.1, the Fe content affects strongly the activation energy.…”

“…This behavior was also observed by Ogale et al [39] where Mn was substituted by a few Fe concentrations. Physical properties of iron doped LaCaMnO manganite with x ¼0.08 to 0.12 have been investigated by Sahasrabudhe et al [40]. Such study shows that activation energy increases from 135 meV for x ¼0.08 to 140 meV for x ¼0.12.…”

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

“…The parent compound LaMnO 3 is doped by divalent alkaline earths (Ca, Sr, Ba, …). Several studies have been conducted in doping the Mn sites [11][12][13][14][15][16][17][18][19] which are the heart of the double exchange mechanism. To date, much of the physical characterization of these materials has been done through doping the La sites by only one kind of the dopant element.…”

Existence of Griffiths phase in La0.67Ca0.33Mn0.93Fe0.07O3

“…Fan et al [7] have also observed the presence of Griffiths phase for Nd 0.5 Sr 0.45 Mn 1−x Ga x O 3 (0.08 ≤ x ≤ 0.10) samples. Although a good amount of work on transport properties and ESR related investigations of Fe-doped manganites has already been done [for example, [19][20][21][22]], but not much investigations on magnetic inhomogeneities of these samples, especially within the framework of Griffiths theory using ESR, has been reported to the best of our knowledge.…”