2017
DOI: 10.15446/dyna.v84n201.55690
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Semiconductor magnéticamente diluido de SnO2- Fe obtenido por precipitación controlada

Abstract: Fueron obtenidas soluciones solidas de SnO2 dopadas con 5% y 8% mol de Fe usando el método de precipitación controlada. Después del proceso de síntesis las muestras en polvo fueron tratadas térmicamente a 350, 500 e 900°C durante una hora. Mediante DRX se observó la casiterita como única fase, y analizando los datos con refinamiento Rietveld se determinó una estimativa de tamaño de cristalito. Usando espectroscopia Raman se estudió la presencia de hierro en las muestras, observando su banda característica en 7… Show more

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“…2 shows the diffractograms of the obtained materials. The two diffraction patterns present a significant widening in their bases and show an acceptable intensity of the peaks, indicating a good crystallinity of the structure [20]. The reflections observed at 30.1, 35.5, 43.1, 57.1 and 62.6 in the 2 θ degree scale can be associated with the (220), (311), (400), (511) and (440) diffraction planes, respectively.…”
Section: Resultsmentioning
confidence: 99%
“…2 shows the diffractograms of the obtained materials. The two diffraction patterns present a significant widening in their bases and show an acceptable intensity of the peaks, indicating a good crystallinity of the structure [20]. The reflections observed at 30.1, 35.5, 43.1, 57.1 and 62.6 in the 2 θ degree scale can be associated with the (220), (311), (400), (511) and (440) diffraction planes, respectively.…”
Section: Resultsmentioning
confidence: 99%