Magnetic behavior in LiNbO3 nanocrystallites caused by oxygen vacancies

被引：11

作者：

Diaz-Moreno, C. A. ^{[1
]}

Farias-Mancilla, R. ^{[2
]}

Matutes-Aquino, J. A. ^{[1
]}

Elizalde-Galindo, J. ^{[2
]}

Espinosa-Magana, F. ^{[1
]}

Gonzalez-Hernandez, J. ^{[1
]}

Hurtado-Macias, A. ^{[1
]}

机构：

[1] Ctr Invest Mat Avanzados SC, Lab Nacl Nanotecnol, Chihuahua 31109, Mexico

[2] Inst Ingn & Tecnol, Dept Fis & Matemat, Chihuahua 32310, Mexico

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2014年 / 356卷

关键词：

Lithium niobate; Ferromagnetic; Ferroelectric; Density-functional theory (DFT); FERROMAGNETISM; IMPURITIES;

D O I：

10.1016/j.jmmm.2013.12.029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ferromagnetism is observed in LiNiO3 nanocrystals exposed to a reducing atmosphere intended to create oxygen vacancies. The existence of vacancies is confirmed by measuring the oxygen depletion across the selected nanoparticles by TEM. The magnetism shows no temperature dependence in the range of 4-300 K. The density functional theory was used to perform spin polarized electronic structure calculations for LiNiO3 with and without oxygen vacancies. The calculated magnetic data qualitatively support the observed magnetic behavior. (C) 2013 Elsevier DN. All rights reserved.

引用

页码：82 / 86

页数：5

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