期刊
APPLIED PHYSICS LETTERS
卷 107, 期 7, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4928552
关键词
-
资金
- NSF [DMR-1420736]
- AFSOR faculty fellowship
A promising approach in designing composite materials with an unusual physical behavior combines solid nanostructures and orientationally ordered soft matter at the mesoscale. Such composites can not only inherit properties of their constituents but also can exhibit emergent behavior such as ferromagnetic ordering of colloidal metal nanoparticles forming mesoscopic magnetization domains when dispersed in a nematic liquid crystal. Here, we demonstrate the optical patterning of domain structures and topological defects in such ferromagnetic liquid crystal colloids, which allows for altering their response to magnetic fields. Our findings reveal the nature of the defects in this soft matter system which is different as compared to non-polar nematics and ferromagnets alike. (C) 2015 AIP Publishing LLC.
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