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5 October 2015 Helimagnetism in nanometer small bilayer iron islands (Presentation Recording)
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We report a novel noncollinear magnetic order in individual nanostructures of a prototypical magnetic material, bilayer iron islands on Cu (111) [1]. Spin-polarized scanning tunnelling microscopy reveals a magnetic stripe phase with a period of 1.28 nm, which is identified as a one-dimensional helical spin order. Ab initio calculations reveal reduced-dimensionality-enhanced long-range antiferromagnetic interactions as the driving force of this spin order. Our findings point at the potential of nanostructured magnets to establish noncollinear magnetic order in a nanostructure, which is magnetically decoupled from the substrate. [1] S.H. Phark, J.A. Fischer, M. Corbetta, D. Sander, K. Nakamura, J. Kirschner, Nature Comm. 5, 5183 (2014).
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Dirk Sander "Helimagnetism in nanometer small bilayer iron islands (Presentation Recording)", Proc. SPIE 9551, Spintronics VIII, 95511G (5 October 2015);

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