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Room Temperature In-plane <100> Magnetic Easy Axis for Fe3O4/SrTiO3(001):Nb Grown by Infrared PLD

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arxiv 1307.6873 v1 pith:YSCWTVFO submitted 2013-07-25 cond-mat.mtrl-sci

Room Temperature In-plane <100> Magnetic Easy Axis for Fe3O4/SrTiO3(001):Nb Grown by Infrared PLD

Matteo Monti , Mikel Sanz , Mohamed Oujja , Esther Rebollar , Marta Castillejo , Alberto Bollero , Julio Camarero , Jose Luis F. Cu\~nado
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Norbert M. Nemes Federico J. Mompean Mar Garcia-Hern\'andez Shu Nie Kevin F. McCarty Alpha T. N'Diaye Gong Chen Andreas K. Schmid Jos\'e F. Marco Juan de la Figuera
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classification cond-mat.mtrl-sci
keywords magneticdirectionsfilmin-planealongeasy-axisfilmsgrown
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We examine the magnetic easy-axis directions of stoichiometric magnetite films grown on SrTiO3:Nb by infrared pulsed-laser deposition. Spin-polarized low-energy electron microscopy reveals that the individual magnetic domains are magnetized along the in-plane <100> film directions. Magneto-optical Kerr effect measurements show that the maxima of the remanence and coercivity are also along in-plane <100> film directions. This easy-axis orientation differs from bulk magnetite and films prepared by other techniques, establishing that the magnetic anisotropy can be tuned by film growth.

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