Room temperature magnetocaloric and magneto-transport properties of monovalent doped Pr 0.6 Sr 0.35 Na 0.05 MnO 3 manganite

Structural, magnetic, electrical and dielectric properties of Pr0.8Na0.2MnO3 manganite

“…It is also interesting to note that the sodium-doped manganites have been studied because of the possibility of using them as magnetic refrigerant materials. [26][27][28][29] These oxides demonstrate signicant magnetic effect values which make them potential candidates for magnetic cooling. In contrary, the electrical and dielectric properties have rarely been investigated in Na-doped manganites.…”

Magnetic and magnetocaloric study of manganite compounds Pr0.5A0.05Sr0.45MnO3 (A=Na and K) and composite

“…In the last few years, and after the discovery of the magnetocaloric effect (MCE), the perovskite manganites with general formula Re 1-x Ae x MnO 3 , where Re is a rare earth (La, Pr, Nd…) and Ae is an alkaline earth (Ca, Sr, Ba…), [1][2][3][4][5][6][7][8] have stimulated much research worldwide, not only because of their importance in the fundamental results, but also for their possible practical applications such as quantum computing, ultrahigh density magnetic data storage as well as spintronic applications [9][10][11][12]. Pr-based compounds are interesting due to the fact that the strength of double-exchange interactions is weaker than that of the La-based compounds, as a consequence of the large lattice distortions induced by the smaller Pr ions.…”

“…Finally, we will report the magnetic and magnetocaloric study of a composite based on Pr 0. 5 X-ray powder diffraction study was carried out at room temperature and the structural data were refined using the Rietveld technique based on the FullProf code [30]. We have represented in fig.…”

“…For Pr 0. 5 The magnetic entropy change under different magnetic field changes for our composite deduced from the isothermal magnetization measurements is plotted in fig.9. One can see that the shape of curves is similar to that reported for typical manganites when the applied field exceeds 4T.…”

Small angle neutron scattering study of magnetic clustering in (Pr0.55Ca0.45)(Mn1−yCry)O3 manganites

“…Several efforts in order to modify the properties of manganites have been tested by selected chemical substitutions at the A and/or B sites in the ABO 3 general perovskite formula. In a phase separation framework [12], a large number of significant effects due to the average cationic site radius variation have been observed both on magnetoresistance and on the phase transition temperatures in (Pr 0.6 Sr 0.4Àx Na x )MnO 3 [13] and on the electrical resistance modulation in (La 0.67 Ba 0.33 )(Mn 1Àx Cr) x O 3 [14].…”