Lanthanum doped BiFeO3 powders: Syntheses and characterization

被引：62

作者：

Gonzalez Garcia, F. ^{[1
]}

Riccardi, C. S. ^{[2
]}

Simoes, A. Z. ^{[1
]}

机构：

[1] Univ Fed Itajuba Unifei, BR-35900373 Itabira, MG, Brazil

[2] Univ Estadual Paulista, Inst Quim, Dept Quim Fis, Lab Interdisciplinar Ceram, BR-14800900 Araraquara, SP, Brazil

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 501卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

Ferroelectrics; Chemical syntheses; Powder metallurgy; X-ray diffraction; THIN-FILMS; ROOM-TEMPERATURE; FERROELECTRIC POLARIZATION; SILLENITES; FERRITE;

D O I：

10.1016/j.jallcom.2010.04.049

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A soft chemistry route was employed to fabricate single-phase lanthanum modified BiFeO3 (BFO) powders. Effects of lanthanum concentration on the phase formation, grain size and morphologies of BFO powders were systematically investigated. X-ray diffraction results indicated that perovskite phase have been synthesized at the temperature of 850 degrees C/2 h while infrared data indicates no traces of carbonate. Raman analysis reveals that lanthanum atom substitutes bismuth into the BFO site. A homogeneous size distribution of BFO powders was evidenced by scanning electron microscopy. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：25 / 29

页数：5

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