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Paramagnetism in Nitrogen Implanted SnO2 by Low Energy Ion beam Irradiation
The electron paramagnetic resonance (EPR) spectrum of nitrogen implanted SnO2 thin films have been study. An isotropic g (gyromagnetic ratio) tensor is observed and calculated for all Samples (viz. as deposited and for different concentration of nitrogen in SnO2). The different g values are attributed to the different concentration of paramagnetic species. With the increase in doping of nitrogen from 2% to 6%, the substitution of oxygen vacancies and interstitial atom in electronic structure is alsoobserved. This is confirmed by absorption spectrum recorded by UV Visible.
Keywords
Electron paramagnetic resonance; Isotropic; SnO2
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