Electron magnetic resonance and Mössbauer studies on iron doped SnO2 nanoparticles

Iron doped (0.25–7.5% molar) hydrothermal nano-SnO 2 was characterized by electron magnetic resonance (EMR) and Mössbauer spectroscopies. Only a small fraction of transition metal ions are in magnetic ordered state, contrary to the similar crystallographic compound TiO 2 . Temperature dependences of...

Full description

Saved in:
Bibliographic Details
Main Authors: Grecu, Maria Nicoleta, Constantinescu, Serban Gr, Ghica, Daniela, Tǎrǎbǎşanu-Mihaila, Doina, Diamandescu, Lucian
Format: Conference Proceeding
Language:English
Subjects:
Atomic
Condensed Matter Physics
Hadrons
Heavy Ions
Molecular
Nuclear Physics
Optical and Plasma Physics
Physics
Physics and Astronomy
Surfaces and Interfaces
Thin Films
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Iron doped (0.25–7.5% molar) hydrothermal nano-SnO 2 was characterized by electron magnetic resonance (EMR) and Mössbauer spectroscopies. Only a small fraction of transition metal ions are in magnetic ordered state, contrary to the similar crystallographic compound TiO 2 . Temperature dependences of spectra suggest that by increasing iron concentration, or annealing temperature, iron ions migrate to nanoparticles surfaces forming disordered iron oxides.
ISSN:0304-3843
1572-9540
DOI:10.1007/s10751-011-0447-9