CEMS and XRD studies on changing shape of iron nano-particles by irradiation of Au ions of Fe-implanted Al2O3 granular layer
Creators
- 1. Musashi Inst. of Technology, Tokyo (Japan)
- 2. Tokyo Metropolitan Industrial Technology Research Institute, Tokyo (Japan)
- 3. Kurume Institute of Technology, Kurume, Fukuoka (Japan)
- 4. National Inst. of Advanced Industrial Science and Technology, Tsukuba, Ibaraki (Japan)
Description
In order to observe an inverse Ostwald ripening of Fe nano-particles in Fe-implanted Al2O3 granular layers, 3 MeV Au ions were irradiated to Fe nano-particles in these layers with doses of 0.5x and 1.5x1016 ions/cm2. It was found by Conversion Electron Mossbauer Spectroscopy (CEMS) that the inverse Ostwald ripening occurred by fractions of percentages and the magnetic anisotropy of Fe nano-particles was induced to the direction of Au ion beam, i.e. perpendicular to the granular plane. The average crystallite diameters of Fe nano-particles for Au ions unirradiated and irradiated samples were measured using Scherrer's formula from FWHM of Fe (110) X-ray Diffraction (XRD) patterns obtained by 2θ and 2θ/θ methods. It was confirmed that the average crystallite diameters of Fe nano-particles in Fe-implanted Al2O3 granular layers were extended by Au ions irradiation. (author)
Additional details
Publishing Information
- Imprint Title
- Proceedings of the ninth symposium on accelerator and related technology for application
- Imprint Pagination
- 87 p.
- Journal Page Range
- p. 77-80
Conference
- Title
- 9. symposium on accelerator and related technology for application
- Acronym
- ARTA 2007
- Dates
- 21-22 Jun 2007
- Place
- Tokyo (Japan)
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 41091388
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature
- Descriptors DEI
- ALUMINIUM OXIDES; ELECTRON MICROSCOPY; GOLD IONS; GRANULAR MATERIALS; IRON; IRRADIATION; MAGNETIC PROPERTIES; MOESSBAUER EFFECT; NANOSTRUCTURES; X-RAY DIFFRACTION
- Descriptors DEC
- ALUMINIUM COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; IONS; MATERIALS; METALS; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SCATTERING; TRANSITION ELEMENTS
Optional Information
- Notes
- 8 refs., 3 figs.