Room temperature ferromagnetism in garnet type Dysporisum ferrite by coprecipitation approach
Tholkappiyan Ramachandran, Fathalla Hamed, Ramesh Kumar Raji, Abdel‐Hamid I. Mourad
Abstract
In this study, we presented a novel and coprecipitation chemical strategy for the synthesis of garnet type-Dy <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> Fe <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5</inf> O <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">12</inf> ferrite nanopowders using NaOH as a surfactant along containing nitrates of matching metals. The resultant powders were heat treated at 1200 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">◦</sup> C for 6 h and analyzed by XRD, SEM, EDS, and VSM techniques respectively. X-ray diffraction studies of the synthesized sample confirms a mono phase-garnet structured compound with an average crystallite size of 30.3 nm. The morphology of the samples has seen in the SEM images, as tiny crystallite particles in agglomeration. The magnetization exhibited a ferromagnetic behavior, due to the occupancy of cations at Td and Oh sites. Our work suggests that a coprecipitation chemical approach for the synthesis of garnet type Dy <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> Fe <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5</inf> O <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">12</inf> ferrite nanopowders can be employed in a variety of technological applications as a potential material.