Ultrathin limit of exchange bias coupling at oxide multiferroic/ferromagnetic interfaces
| Autor: | Ying-Hao Chu, Pu Yu, Mikel B. Holcomb, Lane W. Martin, Mark Huijben, H. J. A. Molegraaf, Nina Balke, Guus Rijnders, Ramamoorthy Ramesh |
|---|---|
| Přispěvatelé: | Inorganic Materials Science, Faculty of Science and Technology |
| Rok vydání: | 2013 |
| Předmět: |
Coupling
METIS-297083 Materials science Condensed matter physics Mechanical Engineering IR-89952 Heterojunction Linear dichroism Exchange bias Engineering Ferromagnetism Mechanics of Materials exchange bias Physical Sciences Chemical Sciences Antiferromagnetism ferromagnet interface General Materials Science Multiferroics oxide heterostructure Thin film Nanoscience & Nanotechnology multiferroic |
| Zdroj: | Advanced materials (Deerfield Beach, Fla.), vol 25, iss 34 Advanced materials, 25(34), 4739-4745. Wiley-Blackwell |
| ISSN: | 0935-9648 |
| Popis: | Exchange bias coupling at the multiferroic- ferromagnetic interface in BiFeO₃ /La₀.₇ Sr₀.₃ MnO₃ heterostructures exhibits a critical thickness for ultrathin BiFeO₃ layers of 5 unit cells (2 nm). Linear dichroism measurements demonstrate the dependence on the BiFeO₃ layer thickness with a strong reduction for ultrathin layers, indicating diminished antiferromagnetic ordering that prevents interfacial exchange bias coupling. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text