title: Structural and magnetic properties of Co-doped (La,Sr)TiO(3) epitaxial thin films probed using x-ray magnetic circular dichroism.
abstract: We report a study of Co-doped La(0.37)Sr(0.63)TiO(3-δ) thin films grown by pulsed laser deposition in various oxygen pressure conditions. X-ray absorption spectroscopy and magnetic circular dichroism measurements at the Co L(2,3) edges reveal that the cobalt mainly substitutes for the titanium and is in an ionic state. Nevertheless, in some films, indications of additional cobalt metallic impurities were found, suggesting that the intrinsic character of this magnetic system remains questionable.
authors.affiliation: Unité Mixte de Physique CNRS/Thales, Campus de l'Ecole Polytechnique, 1 Avenue A Fresnel, 91767 Palaiseau, France and Université Paris-Sud 11, 91405 Orsay, France.
authors.forename: O
authors.initials: O
authors.lastname: Copie
authors.forename: K
authors.initials: K
authors.lastname: Rode
authors.forename: R
authors.initials: R
authors.lastname: Mattana
authors.forename: M
authors.initials: M
authors.lastname: Bibes
authors.forename: V
authors.initials: V
authors.lastname: Cros
authors.forename: G
authors.initials: G
authors.lastname: Herranz
authors.forename: A
authors.initials: A
authors.lastname: Anane
authors.forename: R
authors.initials: R
authors.lastname: Ranchal
authors.forename: E
authors.initials: E
authors.lastname: Jacquet
authors.forename: K
authors.initials: K
authors.lastname: Bouzehouane
authors.forename: M-A
authors.initials: MA
authors.lastname: Arrio
authors.forename: P
authors.initials: P
authors.lastname: Bencok
authors.forename: N B
authors.initials: NB
authors.lastname: Brookes
authors.forename: F
authors.initials: F
authors.lastname: Petroff
authors.forename: A
authors.initials: A
authors.lastname: Barthélémy