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Title: Effect of annealing atmosphere on phase formation and electrical characteristics of bismuth ferrite thin films

Abstract

Bismuth ferrite thin films were deposited on Pt/Ti/SiO{sub 2}/Si substrates by a soft chemical method and spin-coating technique. The effect of annealing atmosphere (air, N{sub 2} and O{sub 2}) on the structure and electrical properties of the films are reported. X-ray diffraction analysis reveals that the film annealed in air atmosphere is a single-phase perovskite structure. The films annealed in air showed better crystallinity and the presence of a single BFO phase leading to lower leakage current density and superior ferroelectric hysteresis loops at room temperature. In this way, we reveal that BFO film crystallized in air atmosphere by the soft chemical method can be useful for practical applications, including nonvolatile digital memories, spintronics and data-storage media.

Authors:
 [1]; ;  [2];  [1]; ;  [2]
  1. Universidade Federal de Itajuba, UNIFEI - CAMPUS ITABIRA, Rua Sao Paulo, 377, Bairro Amazonas, CEP: 35900-373 Itabira, MG (Brazil)
  2. Laboratorio Interdisciplinar em Ceramica, Departamento de Fisico-Quimica, Instituto de Quimica Universidade Estadual Paulista, Bairro: Quitandinha, CEP: 14800-900 Araraquara, SP (Brazil)
Publication Date:
OSTI Identifier:
22029833
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 44; Journal Issue: 8; Other Information: Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANNEALING; ATMOSPHERES; ATOMIC FORCE MICROSCOPY; BISMUTH; DENSITY; ELECTRICAL PROPERTIES; FERRITE; FERRITES; PEROVSKITE; SILICON OXIDES; SUBSTRATES; SYNTHESIS; THIN FILMS; X-RAY DIFFRACTION

Citation Formats

Simoes, A.Z., E-mail: alezipo@yahoo.com, Riccardi, C.S., Dos Santos, M.L., Garcia, F. Gonzalez, Longo, E., and Varela, J.A. Effect of annealing atmosphere on phase formation and electrical characteristics of bismuth ferrite thin films. United States: N. p., 2009. Web. doi:10.1016/J.MATERRESBULL.2009.03.011.
Simoes, A.Z., E-mail: alezipo@yahoo.com, Riccardi, C.S., Dos Santos, M.L., Garcia, F. Gonzalez, Longo, E., & Varela, J.A. Effect of annealing atmosphere on phase formation and electrical characteristics of bismuth ferrite thin films. United States. doi:10.1016/J.MATERRESBULL.2009.03.011.
Simoes, A.Z., E-mail: alezipo@yahoo.com, Riccardi, C.S., Dos Santos, M.L., Garcia, F. Gonzalez, Longo, E., and Varela, J.A. Wed . "Effect of annealing atmosphere on phase formation and electrical characteristics of bismuth ferrite thin films". United States. doi:10.1016/J.MATERRESBULL.2009.03.011.
@article{osti_22029833,
title = {Effect of annealing atmosphere on phase formation and electrical characteristics of bismuth ferrite thin films},
author = {Simoes, A.Z., E-mail: alezipo@yahoo.com and Riccardi, C.S. and Dos Santos, M.L. and Garcia, F. Gonzalez and Longo, E. and Varela, J.A.},
abstractNote = {Bismuth ferrite thin films were deposited on Pt/Ti/SiO{sub 2}/Si substrates by a soft chemical method and spin-coating technique. The effect of annealing atmosphere (air, N{sub 2} and O{sub 2}) on the structure and electrical properties of the films are reported. X-ray diffraction analysis reveals that the film annealed in air atmosphere is a single-phase perovskite structure. The films annealed in air showed better crystallinity and the presence of a single BFO phase leading to lower leakage current density and superior ferroelectric hysteresis loops at room temperature. In this way, we reveal that BFO film crystallized in air atmosphere by the soft chemical method can be useful for practical applications, including nonvolatile digital memories, spintronics and data-storage media.},
doi = {10.1016/J.MATERRESBULL.2009.03.011},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 8,
volume = 44,
place = {United States},
year = {2009},
month = {8}
}