Published September 2007
| Version v1
Journal article
Magnetization enhancement in nanosized MgFe2O4 prepared by mechanosynthesis
Creators
- 1. Institute of Physical and Theoretical Chemistry, Braunschweig University of Technology, Hans-Sommer-Strasse 10, Braunschweig D-38106 (Germany) and Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, Kosice SK-04353 (Slovakia)
- 2. Institute of Physical and Theoretical Chemistry, Braunschweig University of Technology, Hans-Sommer-Strasse 10, Braunschweig D-38106 (Germany)
- 3. Institute of Condensed Matter Physics, Braunschweig University of Technology, Mendelssohnstrasse 3, Braunschweig D-38106 (Germany)
- 4. Institute of Physical Chemistry and Electrochemistry, University of Hannover, Callinstrasse 3-3A, Hannover D-30167 (Germany)
Description
The magnetization enhancement in nanoscale mechanosynthesized MgFe2O4 is reported and is discussed in terms of a modified core-shell model, in which a competition between the effects of spin canting and site exchange of cations plays a decisive role. Because of the nearly random distribution of cations, the surface shell of nanoparticles exhibits an effective magnetic moment that is about 2 times larger than that of the particle core. The thickness of the 'magnetically active' surface shell is calculated from the size-dependent magnetization measurements
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2007.03.087;
- PII
- S0304-8853(07)00425-8;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 316
- Journal Issue
- 2
- Journal Page Range
- p. e764-e767
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- Joint European magnetic symposia
- Dates
- 26-30 Jun 2006
- Place
- San Sebastian (Spain)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39035562
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CATIONS; IRON OXIDES; MAGNESIUM COMPOUNDS; MAGNETIC MOMENTS; MAGNETIZATION; NANOSTRUCTURES; PARTICLES; SHELL MODELS; SPIN; SURFACES; THICKNESS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ANGULAR MOMENTUM; CHALCOGENIDES; CHARGED PARTICLES; DIMENSIONS; IONS; IRON COMPOUNDS; MATHEMATICAL MODELS; NUCLEAR MODELS; OXIDES; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.