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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Enhancement of ferromagnetic and ferroelectric properties in calcium doped BiFeO3 by chemical synthesis

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Author(s):
Costa, L. V. [1] ; Rocha, L. S. [1] ; Cortes, J. A. [1] ; Ramirez, M. A. [1] ; Longo, E. [2] ; Simoes, A. Z. [1]
Total Authors: 6
Affiliation:
[1] Univ Estadual Paulista Unesp, Fac Engn Guaratingueta, BR-12516410 Guaratingueta, SP - Brazil
[2] Univ Estadual Paulista UNESP, Inst Quim, Lab Interdisciplinar Eletroquim & Ceram LIEC, BR-1480090 Araraquara, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: CERAMICS INTERNATIONAL; v. 41, n. 8, p. 9265-9275, SEP 2015.
Web of Science Citations: 6
Abstract

Calcium (Ca)-doped bismuth ferrite (BiFeO3) thin films prepared by using the polymeric precursor method (PPM) were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), polarization and magnetic measurements. Structural studies by XRD and Rietveld refinement reveal the co-existence of distorted rhombohedral and tetragonal phases in the highest doped BiFeO3 (BFO) where enhanced ferroelectric and magnetic properties are produced by internal strain. A high coercive field in the hysteresis loop is observed for the BiFeO3 film. Fatigue and retention free characteristics are improved in the highest Ca-doped sample due to changes in the crystal structure of BFO for a primitive cubic perovskite lattice with four-fold symmetry and a large tetragonal distortion within the crystal domain. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved. (AU)

FAPESP's process: 08/57872-1 - National Institute for Materials Science in Nanotechnology
Grantee:Elson Longo da Silva
Support type: Research Projects - Thematic Grants
FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC