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Titolo:
High-temperature Mossbauer spectroscopy of electronic disorder in complex oxides
Autore:
Mack, DE; Wissmann, S; Becker, KD;
Indirizzi:
Braunschwig Univ Technol, Inst Phys & Theoret Chem, D-38106 Braunschweig, Germany Braunschwig Univ Technol Braunschweig Germany D-38106 unschweig, Germany
Titolo Testata:
SOLID STATE IONICS
fascicolo: 1-4, volume: 135, anno: 2000,
pagine: 625 - 630
SICI:
0167-2738(200011)135:1-4<625:HMSOED>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
CATION DISTRIBUTION; MAGNETITE; DIFFUSION; DEFECTS; SYSTEM;
Keywords:
SrFeO3; Fe3O4; electronic disorder; Mossbauer spectroscopy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Becker, KD Braunschwig Univ Technol, Inst Phys & Theoret Chem, Hans SommerStr 10, D-38106 Braunschweig, Germany Braunschwig Univ Technol Hans SommerStr 10 Braunschweig Germany D-38106
Citazione:
D.E. Mack et al., "High-temperature Mossbauer spectroscopy of electronic disorder in complex oxides", SOL ST ION, 135(1-4), 2000, pp. 625-630

Abstract

Results are reported on the electronic disorder in the perovskite SrFeO3-Delta and in the spinel Fe3O4. Data have been obtained from high-temperaturein-situ Mossbauer studies extending up to 1400 degreesC. The electronic disorder of the mixed valence iron perovskite SrFeO3-Delta has been studied as a function of temperature and oxygen partial pressure. Results are discussed in relation to the microscopic mechanism of electrical conduction. In magnetite, Fe3O4, the cation distribution of ferrous and ferric ions in the spinel structure has been determined as a function of temperature. (C) 2000Elsevier Science B.V. All rights reserved.

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Documento generato il 16/07/20 alle ore 19:10:43