Author
Listed:
- S. -H. Phark
(Max-Planck-Institut für Mikrostrukturphysik)
- J. A. Fischer
(Max-Planck-Institut für Mikrostrukturphysik
Laboratório de Filmes Finos e Superfícies, Universidade Federal de Santa Catarina)
- M. Corbetta
(Max-Planck-Institut für Mikrostrukturphysik)
- D. Sander
(Max-Planck-Institut für Mikrostrukturphysik)
- K. Nakamura
(Mie University)
- J. Kirschner
(Max-Planck-Institut für Mikrostrukturphysik)
Abstract
Low-dimensionality in magnetic materials often leads to noncollinear magnetic order, such as a helical spin order and skyrmions, which have received much attention because of envisioned applications in spin transport and in future data storage. Up to now, however, the real-space observation of the noncollinear magnetic order has been limited mostly to systems involving a strong spin–orbit interaction. Here we report a noncollinear magnetic order in individual nanostructures of a prototypical magnetic material, bilayer iron islands on Cu (111). 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 identify reduced-dimensionality-enhanced long-range antiferromagnetic interactions as the driving force of this spin order. Our findings point at the potential of nanostructured magnets as a new experimental arena of noncollinear magnetic order stabilized in a nanostructure, magnetically decoupled from the substrate.
Suggested Citation
S. -H. Phark & J. A. Fischer & M. Corbetta & D. Sander & K. Nakamura & J. Kirschner, 2014.
"Reduced-dimensionality-induced helimagnetism in iron nanoislands,"
Nature Communications, Nature, vol. 5(1), pages 1-7, December.
Handle:
RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6183
DOI: 10.1038/ncomms6183
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