EVOLUTION OF THE OXIDATION OF ULTRASMALL ALPHA-FE PARTICLES

Authors
LINDEROTH S BENTZON MD MORUP S
Citation
S. Linderoth et al., EVOLUTION OF THE OXIDATION OF ULTRASMALL ALPHA-FE PARTICLES, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 76(1-4), 1993, pp. 173-174
Citations number
6
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
76
Issue
1-4
Year of publication
1993
Pages
173 - 174
Database
ISI
SICI code
0168-583X(1993)76:1-4<173:EOTOOU>2.0.ZU;2-A
Abstract
Ultrafine iron particles, prepared by an evaporation technique, have b een studied by the use of Mossbauer spectroscopy as a function of time of exposure to air. The passivation layer is found to contain poorly crystallized, cubic iron oxide. Measurements in large external magneti c fields at 5 K showed that the oxide had a noncolinear spin structure , in contrast to ferrimagnetic bulk oxides. This is presumably related to the small particle size.