Photoabsorption characterization and magnetic property of multiferroic BiFeO3 nanotubes synthesized by a facile sol-gel template process

被引：62

作者：

Wei, Jie ^{[1
]}

Xue, Desheng ^{[1
]}

Xu, Yan ^{[1
]}

机构：

[1] Lanzhou Univ, Key Lab Magnet & Magnet Mat MOE, Lanzhou 730000, Peoples R China

来源：

SCRIPTA MATERIALIA | 2008年 / 58卷 / 01期

基金：

中国国家自然科学基金;

关键词：

nanotube; sol-gel; perovskites; magnetic properties; optical properties;

D O I：

10.1016/j.scriptamat.2007.09.001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper reports the synthesis and characterization of multiferroic BiFeO3 nanotubes. Perovskite BiFeO3 nanotubes with outer diameters 150-190 nm were synthesized by a facile sol-gel template method. The photoabsorption of BiFeO3 nanotubes was characterized by UV-visible diffuse reflectance spectrometry. The BiFeO3 nanotubes show weak ferromagnetism at room temperature, unlike the antiferromagnetic order in bulk BiFeO3, reflecting the grain size-confinement effect on the magnetic ordering of BiFeO3. (C) 2007 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.

引用

页码：45 / 48

页数：4

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