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Materials 2014, 7(11), 7217-7225; doi:10.3390/ma7117217

Structural Aspects LiNbO3 Nanoparticles and Their Ferromagnetic Properties

1
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
2
Materials Research and Technology Institute, University of Texas at El Paso, 500 W, University Ave, El Paso, TX 79968, USA
3
Kleberg Advanced Microscopy Center, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
4
Centro de Investigación en Materiales Avanzados S.C., Laboratorio Nacional de Nanotecnología, Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua, Apdo. Postal 31109, Mexico
*
Author to whom correspondence should be addressed.
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)
View Full-Text   |   Download PDF [759 KB, uploaded 28 October 2014]   |  

Abstract

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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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).

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MDPI and ACS Style

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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