Structural Aspects LiNbO3 Nanoparticles and Their Ferromagnetic Properties

Date
2014-10-28
Authors
Diaz-Moreno, Carlos A.
Farias-Mancilla, Rurik
Elizalde-Galindo, Jose T.
González-Hernández, Jesus
Hurtado-Macias, Abel
Bahena, Daniel
José-Yacamán, Miguel
Ramos, Manuel
Journal Title
Journal ISSN
Volume Title
Publisher
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.

Description
Keywords
scanning transmission electron microscopy (STEM), nanoparticles, lithium niobate, ferroelectric, ferromagnetic
Citation
Materials 7 (11): 7217-7225 (2014)
Department
Physics and Astronomy