TY  - JOUR
AU  - Hermenau, J.
AU  - Azpiroz, Julen Ibanez
AU  - Hübner, Chr.
AU  - Sonntag, A.
AU  - Baxevanis, B.
AU  - Ton, K. T.
AU  - Steinbrecher, M.
AU  - Khajetoorians, A. A.
AU  - dos Santos Dias, M.
AU  - Blügel, S.
AU  - Wiesendanger, R.
AU  - Lounis, S.
AU  - Wiebe, J.
TI  - A gateway towards non-collinear spin processing using three-atom magnets with strong substrate coupling
JO  - Nature Communications
VL  - 8
IS  - 1
SN  - 2041-1723
CY  - London
PB  - Nature Publishing Group
M1  - FZJ-2017-07186
SP  - 642
PY  - 2017
AB  - A cluster of a few magnetic atoms on the surface of a nonmagnetic substrate is one suitable realization of a bit for spin-based information technology. The prevalent approach to achieve magnetic stability is decoupling the cluster spin from substrate conduction electrons in order to suppress destabilizing spin-flips. However, this route entails less flexibility in tailoring the coupling between the bits needed for spin-processing. Here, we use a spin-resolved scanning tunneling microscope to write, read, and store spin information for hours in clusters of three atoms strongly coupled to a substrate featuring a cloud of non-collinearly polarized host atoms, a so-called non-collinear giant moment cluster. The giant moment cluster can be driven into a Kondo screened state by simply moving one of its atoms to a different site. Using the exceptional atomic tunability of the non-collinear substrate mediated Dzyaloshinskii–Moriya interaction, we propose a logical scheme for a four-state memory.
LB  - PUB:(DE-HGF)16
C6  - pmid:28935897
UR  - <Go to ISI:>//WOS:000411416100002
DO  - DOI:10.1038/s41467-017-00506-7
UR  - https://juser.fz-juelich.de/record/838609
ER  -