首页|One step microwave assisted synthesis of praseodymium orthoferrite nanoparticles: Rietveld refinement phase matching, optical, and magnetic property analysis
One step microwave assisted synthesis of praseodymium orthoferrite nanoparticles: Rietveld refinement phase matching, optical, and magnetic property analysis
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NSTL
Elsevier
The formation of PrFeO3 perovskite nanocrystalline materials in the orthorhombic phase was achieved via induced exothermic heating process. The Rietveld refinement analysis performed by importing the COD database entry: 96-210-7085 in Fullprof program package has revealed that the lattice parameters of synthesized PrFeO3 unit cells are a = 5.479828 & Aring;; b = 5.578260 & Aring;; c = 7.789780 & Aring;. The crystallite size and incoherent diffraction domain induced strain of PrFeO3 are calculated as 28.24 nm and 2.4625 x 10(-4) respectively. The vacancy of Pr ion (A side) was found slightly higher than Fe ions (B-side) in the PrFeO3 unit cells. The peaks appearance at 571 cm(-1) and 536 cm(-1) due to metal oxide vibration in FTIR spectrum were assigned to harmonically vibrating (Fe-O-2 and Fe-O-5) and (Fe-O-1 and Fe-O-4) groups respectively and their vibrational frequencies agreed with the theoretically calculated frequencies. It was observed that from the MTZFC curve, rotation of the vector component (along c-axis) of Pr ion magnetic moment takes place below 35.31 K. MH hysteresis curve of prepared sample was characterized by lower magnitude of retentivity and coercivity indicating that the synthesized PrFeO3 materials fall under the category of soft ferromagnets were reported in detail.
NSTL
Elsevier
