Structural, electrical and magnetic studies of Co:SnO2 and (Co,Mo):SnO2 films prepared by pulsed laser deposition

Dalui, S.; Rout, S.; Silvestre, António Jorge; Lavareda, G.; Pereira, L. C. J.; Brogueira, P.; Conde, O.

http://hdl.handle.net/10400.21/2841

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Authors

Dalui, S.

Rout, S.

Silvestre, António Jorge

Abstract(s)

Here we report on the structural, optical, electrical and magnetic properties of Co-doped and (Co,Mo)-codoped SnO2 thin films deposited on r-cut sapphire substrates by pulsed laser deposition. Substrate temperature during deposition was kept at 500 degrees C. X-ray diffraction analysis showed that the undoped and doped films are crystalline with predominant orientation along the [1 0 1] direction regardless of the doping concentration and doping element. Optical studies revealed that the presence of Mo reverts the blue shift trend observed for the Co-doped films. For the Co and Mo doping concentrations studied, the incorporation of Mo did not contribute to increase the conductivity of the films or to enhance the ferromagnetic order of the Co-doped films. (C) 2012 Elsevier B.V. All rights reserved.

Keywords

Tin oxide (Co,Mo)-codoping Optical band gap Ferromagnetism SNO2 Thin-Films Room-Temperature Ferromagnetism Powders

URI

http://hdl.handle.net/10400.21/2841

Citation

DALUI, S.; ROUT, S.; SILVESTRE, A. J.; LAVAREDA, G.; PEREIRA, L. C. J.; BROGUEIRA, P.; CONDE, O. - Structural, electrical and magnetic studies of Co:SnO2 and (Co,Mo):SnO2 films prepared by pulsed laser deposition. Applied Surface Science. ISSN 0169-4332. Vol. 278 (2013), p. 127-131.