• Media type: E-Article
  • Title: Symmetry mediated tunable molecular magnetism on a 2D material
  • Contributor: Wang, Yuqi [Author]; Arabi, Soroush [Author]; Kern, Klaus [Author]; Ternes, Markus [Author]
  • imprint: Springer Nature, 2021
  • Published in: Communications Physics 4(1), 103 (2021). doi:10.1038/s42005-021-00601-8
  • Language: English
  • DOI: https://doi.org/10.1038/s42005-021-00601-8
  • ISSN: 2399-3650
  • Origination:
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  • Description: 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.
  • Access State: Open Access