| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1801654 | Journal of Magnetism and Magnetic Materials | 2010 | 6 Pages |
Abstract
Fe-Pt thin films were deposited by rf sputtering on an MgO substrate heated at different temperatures to induce the formation of the perpendicular Fe-Pt L10 phase with a different grain morphology on the nanometer scale. All films are characterized by a mazelike pattern of FePt nanograins with interconnected bases. MFM images and magnetization curves indicate that all samples have a strong perpendicular magnetic anisotropy arising from (0Â 0Â 1) growth. The temperature behaviour of the electrical resistance indicates that a percolating path exists for conduction electrons in the mazelike pattern. The magnetoresistance was measured as a function of magnetic field (applied longitudinally) and temperature in the ranges â70Â kOe
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Authors
Paolo Allia, Federica Celegato, Marco Coisson, Paola Tiberto, Franco Vinai, Franca Albertini, Francesca Casoli, Simone Fabbrici,