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