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

Autor:	C.E. Rodríguez Torres, V. Bilovol, A.M. Mudarra Navarro, A.F. Cabrera
Rok vydání:	2012
Předmět:	Materials science Valence (chemistry) Absorption spectroscopy Doping Spinel Analytical chemistry Ionic bonding Thermal treatment engineering.material Condensed Matter Physics Electronic Optical and Magnetic Materials Ferromagnetism Rutile engineering Electrical and Electronic Engineering
Zdroj:	Physica B: Condensed Matter. 407:3214-3217
ISSN:	0921-4526
Popis:	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 Fe2+/Fe3+ 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0ad220f5f5b8ff5211add96e1937801e https://doi.org/10.1016/j.physb.2011.12.068 Zobrazit plný text záznamu Full Text from ScienceDirect