Abstract
The technologically important exchange coupling in antiferromagnetic/ ferromagnetic bilayers is investigated for embedded nanostructures defined in a LaFeO 3/La 0.7Sr 0.3MnO 3 bilayer. Exploiting the element specificity of soft X-ray spectromicroscopy, we selectively probe the magnetic order in the two layers. A transition from perpendicular to parallel spin alignment is observed for these nanostructures, dependent on size and crystalline orientation. The results show that shape-induced anisotropy in the antiferromagnet can override the interface exchange coupling in spin-flop coupled nanostructures.
Original language | English |
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Pages (from-to) | 2386-2390 |
Number of pages | 5 |
Journal | Nano Letters |
Volume | 12 |
Issue number | 5 |
DOIs | |
State | Published - May 9 2012 |
Keywords
- Spin-flop coupling
- X-PEEM
- embedded nanostructures
- magnetic dichroism
- size effects