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Open AccessArticle

Structural Aspects LiNbO3 Nanoparticles and Their Ferromagnetic Properties

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Departamento de Física y Matemáticas, Instituto de Ingeniería y Tecnología, Universidad Autónoma de Cd. Juárez, Avenida del Charro #450 N. Cd. Juárez, Chihuahua, C.P. 32310, Mexico
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Materials Research and Technology Institute, University of Texas at El Paso, 500 W, University Ave, El Paso, TX 79968, USA
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Kleberg Advanced Microscopy Center, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
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Centro de Investigación en Materiales Avanzados S.C., Laboratorio Nacional de Nanotecnología, Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua, Apdo. Postal 31109, Mexico
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Author to whom correspondence should be addressed.
Materials 2014, 7(11), 7217-7225; https://doi.org/10.3390/ma7117217
Received: 1 May 2014 / Revised: 12 June 2014 / Accepted: 26 June 2014 / Published: 28 October 2014
(This article belongs to the Special Issue Ultra Thin Ferroic Materials)
We present a solid-state synthesis of ferromagnetic lithium niobate nanoparticles (LiNbO3) and their corresponding structural aspects. In order to investigate the effect of heat treatments, two batches of samples with a heat-treated (HT) and non-heat-treated (nHT) reduction at 650 °C in 5% of hydrogen/argon were considered to investigate the multiferroic properties and their corresponding structural aspects; using magnetometry and scanning transmission electron microscopy (STEM). Results indicate the existence of ferromagnetic domains with a magnetic moment per unit cell of 5.24 × 10−3 μB; caused mainly due to voids and defects on the nanoparticle surface, as confirmed by STEM measurements. View Full-Text
Keywords: scanning transmission electron microscopy (STEM); nanoparticles; lithium niobate; ferroelectric; ferromagnetic scanning transmission electron microscopy (STEM); nanoparticles; lithium niobate; ferroelectric; ferromagnetic
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Diaz-Moreno, C.A.; Farias-Mancilla, R.; Elizalde-Galindo, J.T.; González-Hernández, J.; Hurtado-Macias, A.; Bahena, D.; José-Yacamán, M.; Ramos, M. Structural Aspects LiNbO3 Nanoparticles and Their Ferromagnetic Properties. Materials 2014, 7, 7217-7225.

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