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Magnetite/Nickel andMagnetite/Cobalt Multilayer Nanostructures Obtained by Pulsed Laser Deposition

Published online by Cambridge University Press:  15 February 2011

Monica Sorescu ,
Agnieszka Grabias  and
Lucian Diamandescu
Monica Sorescu
Affiliation:
Duquesne University, Department of Physics, Pittsburgh, PA, U.S.A
Agnieszka Grabias
Affiliation:
Institute for Electronic Materials Technology, Warsaw, Poland
Lucian Diamandescu
Affiliation:
Duquesne University, Department of Physics, Pittsburgh, PA, U.S.A
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Abstract

Nanostructured magnetite/T multilayers, with T = Ni, Co, Cr, have been prepared by pulsed laser deposition. The thickness of individual magnetite and metal layers takes values in the range of 5 - 40 nm with a total multilayer thickness of 100 -120 nm. X-ray diffraction has been used to study the phase characteristics as a function of thermal treatment up to 550 °C. Small amounts of maghemite and hematite were identified together with prevailing magnetite phase after treatments at different temperatures. The mean grain size of magnetite phase increases with temperature from 12 nm at room temperature to 54 nm at 550 °C. The thermal behavior of magnetite in multilayers in comparison with powder magnetite is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 777: Symposium A – Nanostructuring Materials with Energetic Beams , 2003 , T9.4
Copyright
Copyright © Materials Research Society 2003

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