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Papers by Author: Marcelo Knobel

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Study of Raman Spectrum of Fe Doped CeO₂ Thin Films Grown by Pulsed Laser Deposition

Authors: Ram Prakash, Shalendra Kumar, Chan Gyu Lee, S.K. Sharma, Marcelo Knobel, Jung Il Song

Abstract: Ce1-xFexO2 (x=0, 0.01, 0.03 and 0.0 5) thin films were grown by pulsed laser deposition technique on Si and LaAlO3 (LAO) substrates. These films were deposited in vacuum and 200 mTorr oxygen partial pressure for both the substrates. These films were characterized by x-ray diffraction XRD and Raman spectroscopy measurements. XRD results reveal that these films are single phase. Raman results show F2g mode at ~466 cm-1 and defect peak at 489 cm-1 for film that deposited on LAO substrates, full width at half maximum (FWHM) is increasing with Fe doping for films deposited on both the substrates.

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Magnetic Susceptibility and Saturation Magnetization of some Carbonyl Iron Powders used in Magnetorheological Fluids

Authors: Antonio J.F. Bombard, Inés Joekes, Maria R. Alcântara, Marcelo Knobel

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Magnetic and Magnetotransport Properties of Nanostructured Magnetic Materials

Authors: Marcelo Knobel, J.C. Denardin, A.L. Brandl

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Microstructure and Magnetic Properties of Co Films on Si: Thickness and Roughness Dependence

Authors: Hugo B. de Carvalho, M.J.S.P. Brasil, Marcelo Knobel, M.A. Cotta

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Magnetic and Magnetotransport Properties of Nanostructured Magnetic Materials

Authors: Marcelo Knobel, J.C. Denardin, A.L. Brandl