Magnetic properties of co-doped SnO2 diluted magnetic semiconductors |
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Authors: | Sunita Mohanty and S. Ravi |
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Affiliation: | (1) Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India; |
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Abstract: | Polycrystalline samples of Sn1−xCoxO2 are prepared for x=0.02, 0.05 and 0.10. They all exhibit room temperature ferromagnetism with decrease in saturation magnetization with increase in doping. The magnetization data recorded at 85 K, 295 K and 400 K for x ≥ 0.05 could be analyzed in terms of bound magnetic polaron model and the typical polaron concentration at room temperature is found to be in the order of 1021 per m−3. |
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