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Title: Preparation, structural, dielectric and magnetic properties of LaFeO{sub 3}–PbTiO{sub 3} solid solutions

Abstract

Highlights: ► Solid-solutions of (1−x)LaFeO{sub 3}–(x)PbTiO{sub 3} were synthesized by solid-state reaction. ► XRPD and NPD evidence orthorhombic (x < 0.7) and tetragonal (x > 0.8) crystal structures. ► LaFeO{sub 3}-rich compositions order antiferromagnetically (x < 0.6, G-type structure). ► PbTiO{sub 3}-rich compositions exhibit ferroelectric order (x larger than 0.8). ► Magnetic and dielectric (relaxor) ordering coexist near room-temperature around x = 0.4. -- Abstract: Solid solutions of (1−x)LaFeO{sub 3}–(x)PbTiO{sub 3} (0 < x < 1) have been prepared by conventional solid-state reaction. These complex perovskites have been studied by means of X-ray (XRPD) and neutron powder (NPD) diffraction, complemented with dielectric, magnetic, heat capacity and Mössbauer measurements. Complete solubility in the perovskite series was demonstrated. The NPD and XRPD patterns were successfully refined as orthorhombic (x ≤ 0.7) and tetragonal (x ≥ 0.8). A composition-driven phase transformation occurs within the interval 0.7 < x < 0.8. The samples with x < 0.5 showed evidence of long-range magnetic ordering with an G-type antiferromagnetic arrangement of the magnetic moments of the Fe{sup 3+} cations in the B-site with propagation vector k = (0,0,0). Based on the obtained experimental data, a combined structural and magnetic phase diagram has been constructed. The factorsmore » governing the structural, dielectric and magnetic properties of (1−x)LaFeO{sub 3}–(x)PbTiO{sub 3} solid solutions are discussed, as well as their possible multiferroicity.« less

Authors:
 [1];  [2];  [3];  [4];  [5];  [1];  [6];  [1];  [7];  [7];  [7]
  1. Department of Inorganic Materials, Karpov’ Institute of Physical Chemistry, Moscow (Russian Federation)
  2. (Sweden)
  3. Department of Chemistry, Box 523, Uppsala University, 751 20 Uppsala (Sweden)
  4. Laboratoire Leon Brillouin, (CEA-CNRS), CEA/Saclay, 91191 Gif-sur-Yvette (France)
  5. Department of Physics and Astronomy, Box 516, Uppsala University, 751 20 Uppsala (Sweden)
  6. Neutron Physics Institute, Rez (Czech Republic)
  7. Department of Engineering Sciences, Box 534, Uppsala University, 751 21 Uppsala (Sweden)
Publication Date:
OSTI Identifier:
22215559
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 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:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; ANTIFERROMAGNETISM; FERROELECTRIC MATERIALS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MAGNETIZATION; NEUTRON DIFFRACTION; ORTHORHOMBIC LATTICES; PEROVSKITE; PHASE DIAGRAMS; PHASE TRANSFORMATIONS; SOLID SOLUTIONS; SPECIFIC HEAT; TITANATES; X RADIATION; X-RAY DIFFRACTION

Citation Formats

Ivanov, S.A., Department of Engineering Sciences, Box 534, Uppsala University, 751 21 Uppsala, Tellgren, R., Porcher, F., Ericsson, T., Mosunov, A., Beran, P., Korchagina, S.K., Kumar, P. Anil, Mathieu, R., E-mail: roland.mathieu@angstrom.uu.se, and Nordblad, P. Preparation, structural, dielectric and magnetic properties of LaFeO{sub 3}–PbTiO{sub 3} solid solutions. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.08.003.
Ivanov, S.A., Department of Engineering Sciences, Box 534, Uppsala University, 751 21 Uppsala, Tellgren, R., Porcher, F., Ericsson, T., Mosunov, A., Beran, P., Korchagina, S.K., Kumar, P. Anil, Mathieu, R., E-mail: roland.mathieu@angstrom.uu.se, & Nordblad, P. Preparation, structural, dielectric and magnetic properties of LaFeO{sub 3}–PbTiO{sub 3} solid solutions. United States. doi:10.1016/J.MATERRESBULL.2012.08.003.
Ivanov, S.A., Department of Engineering Sciences, Box 534, Uppsala University, 751 21 Uppsala, Tellgren, R., Porcher, F., Ericsson, T., Mosunov, A., Beran, P., Korchagina, S.K., Kumar, P. Anil, Mathieu, R., E-mail: roland.mathieu@angstrom.uu.se, and Nordblad, P. Thu . "Preparation, structural, dielectric and magnetic properties of LaFeO{sub 3}–PbTiO{sub 3} solid solutions". United States. doi:10.1016/J.MATERRESBULL.2012.08.003.
@article{osti_22215559,
title = {Preparation, structural, dielectric and magnetic properties of LaFeO{sub 3}–PbTiO{sub 3} solid solutions},
author = {Ivanov, S.A. and Department of Engineering Sciences, Box 534, Uppsala University, 751 21 Uppsala and Tellgren, R. and Porcher, F. and Ericsson, T. and Mosunov, A. and Beran, P. and Korchagina, S.K. and Kumar, P. Anil and Mathieu, R., E-mail: roland.mathieu@angstrom.uu.se and Nordblad, P.},
abstractNote = {Highlights: ► Solid-solutions of (1−x)LaFeO{sub 3}–(x)PbTiO{sub 3} were synthesized by solid-state reaction. ► XRPD and NPD evidence orthorhombic (x < 0.7) and tetragonal (x > 0.8) crystal structures. ► LaFeO{sub 3}-rich compositions order antiferromagnetically (x < 0.6, G-type structure). ► PbTiO{sub 3}-rich compositions exhibit ferroelectric order (x larger than 0.8). ► Magnetic and dielectric (relaxor) ordering coexist near room-temperature around x = 0.4. -- Abstract: Solid solutions of (1−x)LaFeO{sub 3}–(x)PbTiO{sub 3} (0 < x < 1) have been prepared by conventional solid-state reaction. These complex perovskites have been studied by means of X-ray (XRPD) and neutron powder (NPD) diffraction, complemented with dielectric, magnetic, heat capacity and Mössbauer measurements. Complete solubility in the perovskite series was demonstrated. The NPD and XRPD patterns were successfully refined as orthorhombic (x ≤ 0.7) and tetragonal (x ≥ 0.8). A composition-driven phase transformation occurs within the interval 0.7 < x < 0.8. The samples with x < 0.5 showed evidence of long-range magnetic ordering with an G-type antiferromagnetic arrangement of the magnetic moments of the Fe{sup 3+} cations in the B-site with propagation vector k = (0,0,0). Based on the obtained experimental data, a combined structural and magnetic phase diagram has been constructed. The factors governing the structural, dielectric and magnetic properties of (1−x)LaFeO{sub 3}–(x)PbTiO{sub 3} solid solutions are discussed, as well as their possible multiferroicity.},
doi = {10.1016/J.MATERRESBULL.2012.08.003},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}