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Title: Synthesis, structural characterization and Mössbauer study of LnV{sub 0.5}Fe{sub 0.5}O{sub 3} perovskites (Ln = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er)

Abstract

Graphical abstract: Mössbauer spectra taken at 200 K for the Y(V{sub 0.5}Fe{sub 0.5})O{sub 3} orthoferrivanadate synthesized by arc-melting. Highlights: ► LnFe{sub 0.5}V{sub 0.5}O{sub 3} were synthesized by the first time for most of the rare-earth elements. ► These orthoferrivanadates crystallize metastably with the perovskite structure. ► Iron and vanadium are trivalent stabilized in these solid solutions. ► The Mössbauer quadrupolar splitting is correlated with the tolerance factor. ► Below 100 K, these perovskites undergo a crystallographic phase transformation. -- Abstract: Perovskites LnV{sub 0.5}Fe{sub 0.5}O{sub 3} (Ln = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er) were synthesized by rapid solidification from arc-melted samples and characterized by the study of their crystal structure and hyperfine properties. These metastable solid solutions crystallized in the Pbnm symmetry, with the iron and vanadium cations randomly distributed in the transition metal octahedral sites. Depending on the lanthanide present at the A site of the perovskite, iron is present with two valences (i.e., Fe{sup 3+} and Fe{sup 2+}). The volume of the unit cell for these perovskites increases linearly with the lanthanide ionic radius, as the perovskite approaches its ideal structure. At room temperature, the quadrupolar splitting of the trivalent paramagneticmore » Mössbauer component works as an indirect measurement for the Goldshmidt tolerance factor. Close to or below 100 K, these perovskites undergo a crystallographic phase transformation, probably due to orbital ordering of the V{sup 3+} cations, originating two different magnetic iron sites.« less

Authors:
; ; ;  [1]; ; ;  [2]
  1. Departamento de Física, Universidade Estadual de Maringá, Av. Colombo 5790, 87.020-900 Maringá, PR (Brazil)
  2. INFIQC-CONICET, Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA Córdoba (Argentina)
Publication Date:
OSTI Identifier:
22215713
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 9; 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; CATIONS; CRYSTALLOGRAPHY; INORGANIC COMPOUNDS; IRON; IRON IONS; ORTHORHOMBIC LATTICES; PARAMAGNETISM; PEROVSKITE; RARE EARTHS; SOLID SOLUTIONS; SOLIDIFICATION; SPECTROSCOPY; SYNTHESIS; VANADIUM; X-RAY DIFFRACTION

Citation Formats

Ivashita, Flávio F., Biondo, Valdecir, Bellini, Jusmar V., Paesano, Andrea, Blanco, M. Cecilia, Fuertes, Valeria C., Pannunzio-Miner, Elisa V., and Carbonio, Raúl E., E-mail: carbonio@fcq.unc.edu.ar. Synthesis, structural characterization and Mössbauer study of LnV{sub 0.5}Fe{sub 0.5}O{sub 3} perovskites (Ln = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er). United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.05.055.
Ivashita, Flávio F., Biondo, Valdecir, Bellini, Jusmar V., Paesano, Andrea, Blanco, M. Cecilia, Fuertes, Valeria C., Pannunzio-Miner, Elisa V., & Carbonio, Raúl E., E-mail: carbonio@fcq.unc.edu.ar. Synthesis, structural characterization and Mössbauer study of LnV{sub 0.5}Fe{sub 0.5}O{sub 3} perovskites (Ln = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er). United States. https://doi.org/10.1016/J.MATERRESBULL.2012.05.055
Ivashita, Flávio F., Biondo, Valdecir, Bellini, Jusmar V., Paesano, Andrea, Blanco, M. Cecilia, Fuertes, Valeria C., Pannunzio-Miner, Elisa V., and Carbonio, Raúl E., E-mail: carbonio@fcq.unc.edu.ar. Sat . "Synthesis, structural characterization and Mössbauer study of LnV{sub 0.5}Fe{sub 0.5}O{sub 3} perovskites (Ln = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er)". United States. https://doi.org/10.1016/J.MATERRESBULL.2012.05.055.
@article{osti_22215713,
title = {Synthesis, structural characterization and Mössbauer study of LnV{sub 0.5}Fe{sub 0.5}O{sub 3} perovskites (Ln = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er)},
author = {Ivashita, Flávio F. and Biondo, Valdecir and Bellini, Jusmar V. and Paesano, Andrea and Blanco, M. Cecilia and Fuertes, Valeria C. and Pannunzio-Miner, Elisa V. and Carbonio, Raúl E., E-mail: carbonio@fcq.unc.edu.ar},
abstractNote = {Graphical abstract: Mössbauer spectra taken at 200 K for the Y(V{sub 0.5}Fe{sub 0.5})O{sub 3} orthoferrivanadate synthesized by arc-melting. Highlights: ► LnFe{sub 0.5}V{sub 0.5}O{sub 3} were synthesized by the first time for most of the rare-earth elements. ► These orthoferrivanadates crystallize metastably with the perovskite structure. ► Iron and vanadium are trivalent stabilized in these solid solutions. ► The Mössbauer quadrupolar splitting is correlated with the tolerance factor. ► Below 100 K, these perovskites undergo a crystallographic phase transformation. -- Abstract: Perovskites LnV{sub 0.5}Fe{sub 0.5}O{sub 3} (Ln = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er) were synthesized by rapid solidification from arc-melted samples and characterized by the study of their crystal structure and hyperfine properties. These metastable solid solutions crystallized in the Pbnm symmetry, with the iron and vanadium cations randomly distributed in the transition metal octahedral sites. Depending on the lanthanide present at the A site of the perovskite, iron is present with two valences (i.e., Fe{sup 3+} and Fe{sup 2+}). The volume of the unit cell for these perovskites increases linearly with the lanthanide ionic radius, as the perovskite approaches its ideal structure. At room temperature, the quadrupolar splitting of the trivalent paramagnetic Mössbauer component works as an indirect measurement for the Goldshmidt tolerance factor. Close to or below 100 K, these perovskites undergo a crystallographic phase transformation, probably due to orbital ordering of the V{sup 3+} cations, originating two different magnetic iron sites.},
doi = {10.1016/J.MATERRESBULL.2012.05.055},
url = {https://www.osti.gov/biblio/22215713}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 9,
volume = 47,
place = {United States},
year = {2012},
month = {9}
}