ENHANCED MULTIFERROIC PROPERTIES OF La-DOPED BiFeO3 NANOTUBES FABRICATED THROUGH ANODIC ALUMINA TEMPLATE METHOD

被引：4

作者：

Hu, Zheng-Long ^{[1
,2
,3
]}

Wang, Yan ^{[1
,2
]}

Dai, Ji-Yan ^{[1
,2
]}

Zhou, Di ^{[1
,2
,3
]}

Hu, Yong-Ming ^{[3
]}

Gu, Hao-Shuang ^{[3
]}

Baba-Kishi, Karim Z. ^{[1
,2
]}

机构：

[1] Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China

[2] Hong Kong Polytech Univ, Mat Res Ctr, Hong Kong, Hong Kong, Peoples R China

[3] Hubei Univ, Fac Phys & Elect Technol, Wuhan 430062, Hubei, Peoples R China

来源：

JOURNAL OF ADVANCED DIELECTRICS | 2011年 / 1卷 / 03期

基金：

美国国家科学基金会;

关键词：

Bi0:85La0:15FeO3; nanotube; ferroelectricity; piezoelectricity; perovskite;

D O I：

10.1142/S2010135X11000410

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bi0.85La0.15FeO3 (BLFO) nanotubes with an average diameter of about 200 nm and wall thickness of about 20 nm are fabricated by sol-gel alumina template technique, and their room-temperature multiferroic properties are studied. Piezoelectricity and ferroelectricity in the BLFO nanotubes are revealed by piezoresponse force microscopy study of individual nanotube. Doping the BiFeO3 nanotubes with La reduces the crystallization temperature and results in a reduced lose of Bi and therefore improved multiferroic properties of the nanotubes. Enhanced weak ferromagnetism is also observed, and it is attributed to the nano-crystalline structure of the nanotubes.

引用

页码：325 / 330

页数：6

共 47 条

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