DataVXChemistry of MaterialsPaper
journal article·2024-05-28Open access

Charge Evolution in the Y0.9Ba1.7Ca2.4Fe5O14.7 Layered Perovskite

Xabier Martínez de Irujo-Labalde, Masato Goto, Esteban Urones-Garrote, Ulises Amador, Clemens Ritter, Midori Amano-Patino, Yuichi Shimakawa, Susana García-Martín

Chemistry of Materials· Volume 36· Issue 10
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Source abstract

Abstract

High Resolution Image Download MS PowerPoint Slide The A mixed-valence Y 0.9 Ba 1.7 Ca 2.4 Fe 5 O 14.7 layered perovskite is obtained after topochemical oxygen insertion in Y 0.9 Ba 1.7 Ca 2.4 Fe 5 O 13 under ozone flow. The crystal structure has been determined with a combination of diffraction and microscopy techniques. Mössbauer spectroscopy reveals a 5 Fe 3.8+ → 2 Fe 3+ + 3 Fe (4+δ)+ charge disproportionation accompanied by a smooth magnetic and electronic transition beginning at about 125 K. A layered arrangement of Fe 3+ and Fe (4+δ)+ assisted by the layered character of the crystal structure is suggested. Two-dimensional magnetic interactions are detected from the magnetic behavior of the oxide and neutron diffraction experiments.
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Research context

Electronic materials

OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Advanced Condensed Matter Physics · Multiferroics and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Departamento de Química Inorgánica I, Facultad de Ciencias Químicas, Universidad Complutense, Madrid 28040, Spain

Institute of Inorganic and Analytical Chemistry, University of Münster, Münster 48149, Germany

Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan

Departamento de Química y Bioquímica, Urbanización Montepríncipe, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Madrid E-28668, Spain

Institut Laue-Langevin, 6, rue Jules Horowitz, Grenoble, Cedex 9 BP 156-38042, France

Funding

Ministerio de Ciencia e Innovaci?n · Ministerio de Educaci?n y Formaci?n Profesional · Institut Laue-Langevin · Institute for Chemical Research, Kyoto University

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