Journal Article

FZJ-2021-02370

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Symmetry mediated tunable molecular magnetism on a 2D material

Wang, Y.FZJ* ; Arabi, S.FZJ* ; Kern, K. ; Ternes, M. (Corresponding author)FZJ*

2021
Springer Nature London

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Please use a persistent id in citations: http://hdl.handle.net/2128/27854  doi:10.1038/s42005-021-00601-8

Abstract: Symmetries in nanoscale structures can be decisive for their structural, electronic, and magnetic properties, particularly in systems with reduced dimensions. Here we show that the symmetries of a flat metal-organic molecule adsorbed on a transition metal dichalcogenide, a 2-dimensional layered material, have a dramatic effect on the total spin and the intramolecular spin-spin interactions. Using a scanning probe microscope, we find two different molecular spin states by modifying the symmetry of the molecules via the twist angle to the substrate. Additionally, we observe significant non-collinear Dzyaloshinskii–Moriya interaction between two electron spins on the molecule induced by the spin-orbit coupling of the van der Waals coupled layered material with broken inversion symmetry. Our work opens a path for modifying the spin by exploiting symmetries and for studying the nature of surface-induced non-collinear spin-spin interaction within a single molecule which might allow the realization of more complex topological spin structures.

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Contributing Institute(s):

1. Funktionale Nanostrukturen an Oberflächen (PGI-3)

Research Program(s):

1. 521 - Quantum Materials (POF4-521) (POF4-521)

Appears in the scientific report 2021

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