RT Journal Article
T1 Charge evolution in the Y0.9Ba1.7Ca2.4Fe5O14.7 layered perovskite
A1 Martínez de Irujo Labalde, Xavier
A1 Goto, Masato
A1 Urones Garrote, Esteban
A1 Amador, Ulises
A1 Ritter, Clemente
A1 Amano Patino, Midori
A1 Shimakawa, Yuichi
A1 García Martín, Susana
AB The A mixed-valence Y0.9Ba1.7Ca2.4Fe5O14.7 layeredperovskite is obtained after topochemical oxygen insertion inY0.9Ba1.7Ca2.4Fe5O13 under ozone flow. The crystal structure has been determined with a combination of diffraction and microscopytechniques. Mössbauer spectroscopy reveals a 5 Fe3.8+ → 2 Fe3+ + 3Fe(4+δ)+ charge disproportionation accompanied by a smoothmagnetic and electronic transition beginning at about 125 K. Alayered arrangement of Fe3+ and Fe(4+δ)+ assisted by the layeredcharacter of the crystal structure is suggested. Two-dimensionalmagnetic interactions are detected from the magnetic behavior ofthe oxide and neutron diffraction experiments.
PB ACS Publications
YR 2024
FD 2024-05-10
LK https://hdl.handle.net/20.500.14352/118080
UL https://hdl.handle.net/20.500.14352/118080
LA eng
NO De Irujo-Labalde, Xabier Martínez, et al. «Charge Evolution in the Y0.9 Ba1.7 Ca2.4 Fe5 O14.7 Layered Perovskite». Chemistry of Materials, vol. 36, n.o 10, mayo de 2024, pp. 5184-91. DOI.org (Crossref), https://doi.org/10.1021/acs.chemmater.4c00552.
NO The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.chemmater.4c00552. Crystal structure and profile matching against PXRD of Y0.9Ba1.7Ca2.4Fe5O13, TGA results, EELS spectra at the O−K O−K edge, refined crystal structure parameters, Fe−O distances at 300 K, and lattice parameter variation between 80 and 450 K of Y0.9Ba1.7Ca2.4Fe5O14.7
NO Agencia Estatal de Investigación (España)
NO European Commission
NO Ministerio de Educación, Formación Profesional y Deportes (España)
NO Grants-in-Aid for Scientific Research (Japan)
NO Ministry of Education, Culture, Sports, Science and Technology (Japan)
NO AdCORP
NO ASPIRE
NO Kyoto University (Japan)
NO Japan Society for the Promotion of Science (Japan)
DS Docta Complutense
RD 11 abr 2025