Characterization of six-coordinated iron (V) in an oxide lattice

Demazeau, G.; Buffat, B.; Ménil, Francis; Fournès, L.; Pouchard, Michel; Dance, J.M.; Fabritchnyi, P.B.; Hagenmuller, Paul

doi:10.1016/0025-5408(81)90067-2

Cited by 81 publications

(28 citation statements)

References 15 publications

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“…This interesting new behavior, observed by 57 Fe Mossbauer spectroscopy, was largely discussed by John and Mikio Takano[16]. A few years later, we were able to confirm this partial disproportionation by comparing their data to ours in La 2 LiFeO 6 (with a much larger negative value of the isomer-shift δ = −0.41 mm.s −1 )[17].…”

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confidence: 75%

John B. Goodenough’s Role in Solid State Chemistry Community: A Thrilling Scientific Tale Told by a French Chemist

Pouchard

2020

Molecules

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In this tribute to John B. Goodenough I will describe how John’s talk on the metal-to-nonmetal transition of vanadium oxide VO2, presented at the Bordeaux Conference (September 1964) attended by inorganic chemists, metallurgists, crystallographers, thermodynamicists and physicists, provided a pioneering vision of interdisciplinary research to come. John gave a complete description of the paradigm on how the physical properties of a solid depend on its structure and bonding, by employing the chemical notions as local distortions and interatomic distances as well as the physics notions such as band width and the Hubbard on-site repulsion U. I will illustrate how inspiring John’s ideas were, by discussing the research examples of my own research group in the sixties-seventies. The fundamental approach of John B. Goodenough to Solid State Chemistry, leading particularly to lithium battery applications, is at the heart of the 2019 Nobel Prize awarded to John.

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confidence: 75%

John B. Goodenough’s Role in Solid State Chemistry Community: A Thrilling Scientific Tale Told by a French Chemist

Pouchard

2020

Molecules

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“…The disorder introduced by Ti substitutions, by Fe IV /Fe III mixed valence and by oxygen vacancies leads to frustration of the exchange interactions and to the formation of a spin-glass state instead of long-range magnetic order. The magnetic properties of the phases SrFe 1±x Ti x O 3±y and Sr 3 Fe 2±x Ti x O 7±y are considerably different from those of K 2 NiF 4 -type iron(IV) oxides (A, A') 2 M 0.5 Fe 0.5 O 4 where cation-ordering on the B sites prevents the 180°Fe±O±Fe exchange interactions [32,33]. These compounds reveal antiferromagnetic order below the Ne Â el temperature T N and normal Curie-Weiss behaviour above T N with spin-only magnetism of a d 4 high-spin configuration.…”

Section: Magnetismmentioning

confidence: 92%

Structural Properties, Mössbauer Spectra, and Magnetism of Perovskite-Type Oxides SrFe1-xTixO3-y

Adler

Eriksson

2000

Z. anorg. allg. Chem.

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“…Similar isomer shift was also determined for Fe 5+ in V 2 O 5 matrix [6], but no quadrupole splitting was detected. Isomer shifts of pentavalent iron in octahedral oxygen arrangement is known for lanthanum(III)-lithiumiron(V) oxide, La 2 LiFeO 6 (δ = −0.41 mm s −1 ) [7]. It is noticeably differs from the obtained value.…”

Section: Resultsmentioning

confidence: 60%