TY  - JOUR
AU  - Menzel, M.
AU  - Mokrousov, Y.
AU  - Wieser, R.
AU  - Bickel, J.E.
AU  - Vedmedenko, E.
AU  - Blügel, S.
AU  - Heinze, S.
AU  - von Bergmann, K.
AU  - Kubetzka, A.
AU  - Wiesendanger, R.
TI  - Information Transfer by Vector Spin Chirality in Finite Magnetic Chains
JO  - Physical review letters
VL  - 108
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-21128
SP  - 197204
PY  - 2012
N1  - 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
AB  - 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.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000303662500017
DO  - DOI:10.1103/PhysRevLett.108.197204
UR  - https://juser.fz-juelich.de/record/21128
ER  -