Uniaxial anisotropy and temperature driven magnetization reversal of Fe deposited on a MnAs/GaAs(001) magnetic template

SACCHI, M.; MARANGOLO, M.; SPEZZANI, C.; COELHO, L.; BREITWIESER, R.; JULIAN MILANO; ETGENS, V. H.

PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS

American Physical Society

Año: 2008 vol. 77 p. 65317 - 65317

0163-1829

We investigated the magnetic behavior of a 5  nm thick Fe layer deposited on a ferromagnetic MnAs/GaAs(001) template by using resonant magnetic scattering of polarized soft x rays. The Fe film displays in-plane uniaxial anisotropy and its magnetization can be modified and reversed by fine-tuning the substrate temperature around ambient because of the self-organization of the coexisting ferromagnetic and paramagnetic phases of the template.