期刊
NANO LETTERS
卷 10, 期 11, 页码 4578-4583出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl1025908
关键词
Antiferromagnetic nanostructures; domain engineering; edge effects; XMLD-PEEM
类别
资金
- Office of Basic Energy Sciences
- Division of Scientific User Facilities, U.S. Department of Energy
- Norwegian Research Council [176656]
Using photoemission electron microscopy in combination with X-ray magnetic linear dichroism, we report reconfiguration upon nanostructuring of the antiferromagnetic domain structure in epitaxial LaFeO3 thin films. Antiferromagnetic (AFM) nanoislands were synthesized using a dedicated process. devised to define nanostructures with magnetic order embedded in a paramagnetic matrix. Significant impact on the AFM domain configuration was observed. Extended domains were found to form along edges parallel to the in-plane < 100 > crystalline axes of the cubic substrate, with their AFM spin axis parallel to the edge. No such edge-imposed domain configuration was found for nanoislands defined with the edges at 45 degrees with the in-plane crystalline axes. Epitaxial constraints on the film crystalline structure appear to play an important role in the formation of the edge-bound extended AFM domains. The data indicate a magnetostatic origin of this domain reconfiguration.
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