首页|Structural, magnetic, and magnetocaloric properties of La(0.7)Sr(0.2)Nd(0.1)Mn(1-x)NixO(3) (x=0.05, 0.10, and 0.15): B-site doping
Structural, magnetic, and magnetocaloric properties of La(0.7)Sr(0.2)Nd(0.1)Mn(1-x)NixO(3) (x=0.05, 0.10, and 0.15): B-site doping
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NSTL
Elsevier
In this study, La0.7Sr0.2Nd0.1Mn1-xNixO3 (x = 0.05, 0.10, 0.15) systems were synthesized following the sol-gel (SG) approach and their structural, magnetic, and magnetocaloric characteristics were determined. The X-ray Diffraction (XRD) patterns revealed that all samples were in the R-3c space group. Magnetic studies revealed that an increase in the Ni2+ dopant resulted in a ferromagnetic (FM) to paramagnetic (PM) transition near the Curie temperature (Tc), when Tc decreased from 280 K to 220 K. The maximum change in magnetic entropy (- Delta S-M(Max) gradually decreased while the relative cooling power (RCP) gradually increased. The -Delta S-M(Max) and RCP values for La0.7Sr0.2Nd0.1Mn0.95Ni0.05O3 were 4.28 J/(kg.K) and 267.67 (J/kg), respectively at 280 K when the external magnetic field variation was 5 T. This material can potentially be one of the candidates for developing the magnetic refrigeration technology.
NSTL
Elsevier
