Back to Search
Start Over
Structure of nanocrystalline MgFe2O4 from X-ray diffraction, Rietveld and atomic pair distribution function analysis.
- Source :
- Journal of Applied Crystallography; Oct2005, Vol. 38 Issue 5, p772-779, 8p
- Publication Year :
- 2005
-
Abstract
- The three-dimensional structure of nanocrystalline magnesium ferrite, MgFe<subscript>2</subscript>O<subscript>4</subscript>, prepared by ball milling, has been determined using synchrotron radiation powder diffraction and employing both Rietveld and atomic pair distribution function (PDF) analysis. The nanocrystalline ferrite exhibits a very limited structural coherence length and a high degree of structural disorder. Nevertheless, the nanoferrite possesses a very well defined local atomic ordering that may be described in terms of a spinel-type structure with Mg<superscript>2+</superscript> and Fe<superscript>3+</superscript> ions almost randomly distributed over its tetrahedral and octahedral sites. The new structural information helps explain the material's unusual magnetic properties. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218898
- Volume :
- 38
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Journal of Applied Crystallography
- Publication Type :
- Academic Journal
- Accession number :
- 18802794
- Full Text :
- https://doi.org/10.1107/S0021889805024477