Enhancement in Curie Temperature of Yttrium Iron Garnet by Doping with Neodymium
AbstractThe effect of the substitution of Y3+ by Nd3+ on the structural and magnetic properties of neodymium-doped yttrium iron garnet, NdxY3−xFe5O12 with x in the range of 0–2.5, is presented. Oxide powders of Fe2O3, Nd2O3, and Y2O3 were mixed in a stoichiometric ratio and milled for 5 h using high-energy ball milling, before being uniaxially pressed at 900 MPa and annealed at 1373 K for 2 h to obtain NdxY3−xFe5O12 (0 ≤ x ≤ 2.5). It was found that the mechanical milling of oxides followed by annealing promotes the complete structural formation of the garnet structure. Additionally, the X-ray diffraction patterns confirm the complete introduction of Nd3+ into the garnet structure with a neodymium doping concentration (x) of 0–2.0, which causes a consistent increment in the lattice parameters with the Nd3+ content. When x is higher than 2.0, the yttrium orthoferrite is the predominant phase. Besides, the magnetic results reveal an increase in the Curie temperature (583 K) as the amount of Nd3+ increases, while there was enhanced saturation magnetization as well as modified remanence and coercivity with respect to non-doped YIG. View Full-Text
Share & Cite This Article
Baños-López, E.; Sánchez-De Jesús, F.; Cortés-Escobedo, C.A.; Barba-Pingarrón, A.; Bolarín-Miró, A.M. Enhancement in Curie Temperature of Yttrium Iron Garnet by Doping with Neodymium. Materials 2018, 11, 1652.
Baños-López E, Sánchez-De Jesús F, Cortés-Escobedo CA, Barba-Pingarrón A, Bolarín-Miró AM. Enhancement in Curie Temperature of Yttrium Iron Garnet by Doping with Neodymium. Materials. 2018; 11(9):1652.Chicago/Turabian Style
Baños-López, Esperanza; Sánchez-De Jesús, Félix; Cortés-Escobedo, Claudia A.; Barba-Pingarrón, Arturo; Bolarín-Miró, Ana M. 2018. "Enhancement in Curie Temperature of Yttrium Iron Garnet by Doping with Neodymium." Materials 11, no. 9: 1652.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.