Chemical-order-induced magnetic exchange bias in epitaxial FePt3 films

We show that magnetic exchange bias can be induced by means of chemical ordering. The effect was observed on epitaxial thin film layers of FePt3, a material which has the remarkable property that, depending on the degree of chemical order, a ferromagnetic and an antiferromagnetic magnetic state can coexist at the same temperature. We demonstrate that the observed exchange bias originates at the interfaces between these two different magnetic phases of FePt3. © 2008, American Physical Society

Keywords

Thin films, Ferromagnetic materials, Antiferromagnetic materials, Iron, Platinum, Chemical state

Citation

Lott, D., Klose, F., Ambaye, H., Mankey, G. J., Mani, P., Wolff, M., Schreyer. A., Christen, H. M., & Sales, B. C. (2008). Chemical-order-induced magnetic exchange bias in epitaxial FePt3 films. Physical Review B, 77(13), 132404. doi:10.1103/PhysRevB.77.132404