On estimating nanoparticle size with the help of the Mossbauer effect

Authors
Nikolaev, VI Shipilin, AM Zakharova, IN
Citation
Vi. Nikolaev et al., On estimating nanoparticle size with the help of the Mossbauer effect, PHYS SOL ST, 43(8), 2001, pp. 1515-1517
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
43
Issue
8
Year of publication
2001
Pages
1515 - 1517
Database
ISI
SICI code
1063-7834(2001)43:8<1515:OENSWT>2.0.ZU;2-B
Abstract
A method for estimating nanoparticle size by determining the distribution f unction p(H-n) of hyperfine magnetic fields from data on the Mossbauer spec trum of Fe-57 nuclei is described. The idea of the method stems from the fa ct that, owing to the breaking of exchange bonds for surface atoms, their c ontribution to the total area bounded by the p(H-n) curve can be singled ou t. The potentialities of the method are illustrated using the data obtained in experiments with nanoparticles of magnetite. (C) 2001 MAIK "Nauka/ Inte rperiodica".