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...

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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
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creator Grecu, Maria Nicoleta
Constantinescu, Serban Gr
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Tǎrǎbǎşanu-Mihaila, Doina
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description 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.
doi_str_mv 10.1007/s10751-011-0447-9
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source Springer Nature
subjects Atomic
Condensed Matter Physics
Hadrons
Heavy Ions
Molecular
Nuclear Physics
Optical and Plasma Physics
Physics
Physics and Astronomy
Surfaces and Interfaces
Thin Films
title Electron magnetic resonance and Mössbauer studies on iron doped SnO2 nanoparticles
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