Response of the local structure of complex oxides to mechanical action

authored by: Vladimir Šepelák, Ingo Bergmann, Sylvio Indris, Armin Feldhoff, Paul Heitjans, Klaus Dieter Becker
Abstract: Owing to the structural flexibility of complex oxides, providing a wide range of physical and chemical behavior, these materials have been considered as a convenient model system for the investigation of mechanically induced processes and of the structure-property relationships in complex ionic systems. In this work, it is demonstrated that spectroscopic methods (nuclear magnetic resonance spectroscopy, Mössbauer spectroscopy and X-ray photoelectron spectroscopy) can provide valuable insight into the mechanochemically induced changes in local structure such as the mechanically induced cation redistribution, the formation of the canted spin arrangement, the modification of the nearest-neighbor cation configuration and the deformation of the polyhedron geometry in spinel aluminates and ferrites. Quantitative information is obtained on the particle size dependent ionic and spin configurations in nanosized spinel oxides prepared by mechanochemical processing of the corresponding bulk materials.
Organisation(s): Center for Solid State Chemistry and New Materials (ZFM)
Institute of Physical Chemistry and Electrochemistry
External Organisation(s): Karlsruhe Institute of Technology (KIT)
Slovak Academy of Sciences
Volkswagen AG
Technische Universität Braunschweig
Type: Article
Journal: Annales de Chimie: Science des Materiaux
Volume: 34
Pages: 377-390
No. of pages: 14
ISSN: 0151-9107
Publication date: 11.2009
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Materials Chemistry
Electronic version(s): https://doi.org/10.3166/acsm.34.377-390 (Access: Closed)

BibTeX

@article{24551203abee4c8dbab59ca0b76222dd,
title = "Response of the local structure of complex oxides to mechanical action",
abstract = "Owing to the structural flexibility of complex oxides, providing a wide range of physical and chemical behavior, these materials have been considered as a convenient model system for the investigation of mechanically induced processes and of the structure-property relationships in complex ionic systems. In this work, it is demonstrated that spectroscopic methods (nuclear magnetic resonance spectroscopy, M{\"o}ssbauer spectroscopy and X-ray photoelectron spectroscopy) can provide valuable insight into the mechanochemically induced changes in local structure such as the mechanically induced cation redistribution, the formation of the canted spin arrangement, the modification of the nearest-neighbor cation configuration and the deformation of the polyhedron geometry in spinel aluminates and ferrites. Quantitative information is obtained on the particle size dependent ionic and spin configurations in nanosized spinel oxides prepared by mechanochemical processing of the corresponding bulk materials.",
author = "Vladimir {\v S}epel{\'a}k and Ingo Bergmann and Sylvio Indris and Armin Feldhoff and Paul Heitjans and Becker, {Klaus Dieter}",
year = "2009",
month = nov,
doi = "10.3166/acsm.34.377-390",
language = "English",
volume = "34",
pages = "377--390",
journal = "Annales de Chimie: Science des Materiaux",
issn = "0151-9107",
publisher = "Lavoisier",
number = "6",
}