Next Article in Journal
Research on the Impact Loading and Energy Dissipation of Concrete after Elevated Temperature under Different Heating Gradients and Cooling Methods
Previous Article in Journal
Unusually Small Thermal Expansion of Ordered Perovskite Oxide CaCu3Ru4O12 with High Conductivity
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Materials 2018, 11(9), 1652; https://doi.org/10.3390/ma11091652

Enhancement in Curie Temperature of Yttrium Iron Garnet by Doping with Neodymium

1
Área Académica de Ciencias de la Tierra y Materiales, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma, Hidalgo 42184, Mexico
2
Centro de Investigación e Innovación Tecnológica, Instituto Politécnico Nacional, Azcapotzalco, Ciudad de México 02250, Mexico
3
Centro de Ingeniería de Superficies y Acabados (CENISA), Facultad de Ingeniería, UNAM, Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, Mexico
*
Author to whom correspondence should be addressed.
Received: 15 June 2018 / Revised: 5 September 2018 / Accepted: 5 September 2018 / Published: 7 September 2018
(This article belongs to the Section Structure Analysis and Characterization)
Full-Text   |   PDF [7972 KB, uploaded 7 September 2018]   |  

Abstract

The 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
Keywords: NdxY3−xFe5O12; rare earth doped YIG; yttrium iron garnet; Y3Fe5O12; Curie temperature NdxY3−xFe5O12; rare earth doped YIG; yttrium iron garnet; Y3Fe5O12; Curie temperature
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

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.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top