Magneto-optical study of slanted Co nanowires embedded in CeO2/SrTiO3(001)

Franck Vidal (1, 2) , P. Schio (1, 3) , N. Keller (4) , Y. Zheng (1, 2) , Dominique Demaille (1) , Francisco Javier Bonilla (1) , J. Milano (1, 2) , A. J. A. De Oliveira (3)

1 INSP - Institut des Nanosciences de Paris
2 LIFAN - Laboratoire International Franco-Argentin en Nanosciences
3 UFSCar - Universidade Federal de São Carlos [São Carlos]
4 GEMAC - Groupe d'Etude de la Matière Condensée

Sequential pulsed laser deposition of CoO and CeO2 at 650 degrees C under vacuum leads to the formation of a slanted Co nanowires assembly embedded in CeO2/SrTiO3(0 0 1) epilayers. High temperature magneto-optical Faraday measurements were performed, which revealed a Faraday ellipticity of 1.3 degrees at a wavelength of 450 nm for 300 nm thick samples and which allowed to access the magnetic properties. From the analysis of the coercivity dependence on temperature, it is shown that the magnetic anisotropy of the slanted Co nanowires is dominated by shape anisotropy and that their magnetization reversal is localized. (C) 2011 Elsevier B.V. All rights reserved.

Mots clés: Nanowires; Pulsed laser deposition; Magneto-optics

Domaines: Matière Condensée [cond-mat]; Matériaux

Franck Vidal, P. Schio, N. Keller, Y. Zheng, Dominique Demaille, et al.. Magneto-optical study of slanted Co nanowires embedded in CeO2/SrTiO3(001). Physica B: Condensed Matter, 2012, 407 (16), pp.3070-3073. ⟨10.1016/j.physb.2011.12.027⟩. ⟨hal-01240532⟩