Physics – Condensed Matter – Materials Science
Scientific paper
2010-04-09
Physics
Condensed Matter
Materials Science
Scientific paper
Graphene is attractive for spintronics due to its long spin life time and high mobility. So far only thick and polycrystalline slabs have been used as ferromagnetic electrodes. We report the growth of flat, epitaxial ultrathin Co films on graphene. These display perpendicular magnetic anisotropy in the thickness range 0.5-1nm, which is confirmed by theory. PMA, epitaxy and ultrathin thickness bring new perspectives for graphene-based spintronic devices such as the zero-field control of an arbitrary magnetization direction, band matching between electrodes and graphene, and interface effects such as Rashba and electric field control of magnetism.
Bayle-Guillemaud Pascale
Chshiev Mairbek
Coraux Johann
David Philippe
Fruchart Olivier
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