Journal Article

PreJuSER-21128

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Information Transfer by Vector Spin Chirality in Finite Magnetic Chains

Menzel, M. ; Mokrousov, Y.FZJ* ; Wieser, R. ; Bickel, J. E. ; Vedmedenko, E. ; Blügel, S.FZJ* ; Heinze, S. ; von Bergmann, K. ; Kubetzka, A. ; Wiesendanger, R.

2012
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/7464  doi:10.1103/PhysRevLett.108.197204

Abstract: Vector spin chirality is one of the fundamental characteristics of complex magnets. For a one-dimensional spin-spiral state it can be interpreted as the handedness, or rotational sense of the spiral. Here, using spin-polarized scanning tunneling microscopy, we demonstrate the occurrence of an atomic-scale spin spiral in finite individual bi-atomic Fe chains on the (5 x 1) similar to Ir(001) surface. We show that the broken inversion symmetry at the surface promotes one direction of the vector spin chirality, leading to a unique rotational sense of the spiral in all chains. Correspondingly, changes in the spin direction of one chain end can be probed tens of nanometers away, suggesting a new way of transmitting information about the state of magnetic objects on the nanoscale.

Keyword(s): J

Note: We thank Y. Yoshida, S. Schroder, D. S. G. Bauer, Ph. Mavropoulos, B. Zimmermann, M. Heide, W. Selke, and G. Bihlmayer for fruitful discussions. M. M., R. Wieser, J. E. B., E. V., K. v. B., A. K., R. Wiesendanger gratefully acknowledge financial support from the DFG via SFB668, from the EU via the ERC Advanced Grant FURORE, and from the Cluster of Excellence NANOSPINTRONICS funded by the Forschungs- und Wissenschaftsstiftung Hamburg. J. E. B. also acknowledges financial support from the Alexander von Humboldt Foundation. Y. M. acknowledges the Julich Supercomputing Centre and funding under the HGF-YIG Programme VH-NG-513 and S. H. thanks the DFG for financial support under Grant No. HE3292/8-1

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)
2. Quanten-Theorie der Materialien (IAS-1)
3. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)
4. Jülich-Aachen Research Alliance - Simulation Sciences (JARA-SIM)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2012

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Database coverage:
; ; ; Current Contents - Social and Behavioral Sciences ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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