MOSSBAUER-SPECTROSCOPY, INTRACLUSTER ATOMIC MOBILITY AND THERMODYNAMICS OF ULTRAFINE OXIDE CLUSTERS

Authors
SUZDALEV IP BURAVTSEV VN IMSHENNIK VK MAKSIMOV YV MATVEEV VV VOLYNSKAYA AV TRAUTWEIN AX WINKLER H
Citation
Ip. Suzdalev et al., MOSSBAUER-SPECTROSCOPY, INTRACLUSTER ATOMIC MOBILITY AND THERMODYNAMICS OF ULTRAFINE OXIDE CLUSTERS, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 18(2-3), 1996, pp. 287-292
Citations number
5
Categorie Soggetti
Physics
Journal title
Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics → ACNP
ISSN journal
03926737
Volume
18
Issue
2-3
Year of publication
1996
Pages
287 - 292
Database
ISI
SICI code
0392-6737(1996)18:2-3<287:MIAMAT>2.0.ZU;2-K
Abstract
Dynamic properties of ultrafine clusters of gamma-Fe2O3 (ferric oxide, FO) were studied by Mossbauer spectroscopy and by thermodynamic analy sis. The data obtained for FO clusters allowed the conclusion that dyn amic properties of clusters as well as the decrease of melting point a nd the appearance of a gap between freezing and melting points depend on intracluster atomic mobility. Intracluster atomic mobility in FO cl usters was shown to increase by the action of surfactants which decrea se intercluster interactions. The increase in intracluster mobility wa s suggested to proceed via formation of a solid-liquid state.