Effect of thermal treatment in vacuum on Fe-doped SnO2 powders

A sample of 10 at% Fe-doped SnO2 powder was prepared by mechanical alloying and then thermally treated at 773 K in vacuum. The fit of the diffraction patterns and X-ray absorption spectroscopy measurements revealed that the as milled sample was pure doped rutile. Fe dissolved into SnO2 was found in Fe2þ/Fe3þ ionic valence with mainly paramagnetic behavior. After the thermal treatment all techniques indicate the formation of the ternary Sn0.36Fe2.64O4 spinel phase, which is responsible for the observed ferromagnetism.

Palabras clave: semiconductor oxides , magnetic properties , nanoparticles

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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)

Identificadores

URI: http://hdl.handle.net/11336/269028

URL: http://www.sciencedirect.com/science/article/pii/S0921452611012610

DOI: http://dx.doi.org/10.1016/j.physb.2011.12.068

Colecciones

Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA

Articulos(INTECIN)
Articulos de INST.D/TEC.Y CS.DE LA ING."HILARIO FERNANDEZ LONG"

Citación

Bilovol, Vitaliy; Mudarra Navarro, Azucena Marisol; RodrÍguez Torres, Claudia Elena; Cabrera, Alejandra Fabiana; Effect of thermal treatment in vacuum on Fe-doped SnO2 powders; Elsevier Science; Physica B: Condensed Matter; 407; 16; 2-2012; 3214-3217

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