Large magnetic exchange coupling in rhombus-shaped nanographenes with zigzag periphery

  title={Large magnetic exchange coupling in rhombus-shaped nanographenes with zigzag periphery},
  author={Shantanu Mishra and Xuelin Yao and Qiang Chen and Kristjan Eimre and Oliver Gr{\"o}ning and Ricardo Ortiz and Marco Di Giovannantonio and Juan Carlos Sancho‐Garc{\'i}a and Joaqu{\'i}n Fern{\'a}ndez-Rossier and Carlo A. Pignedoli and Klaus M{\"u}llen and Pascal Ruffieux and Akimitsu Narita and Roman Fasel},
  journal={Nature Chemistry},
  pages={581 - 586}
Nanographenes with zigzag edges are predicted to manifest non-trivial π-magnetism resulting from the interplay of concurrent electronic effects, such as hybridization of localized frontier states and Coulomb repulsion between valence electrons. This provides a chemically tunable platform to explore quantum magnetism at the nanoscale and opens avenues towards organic spintronics. The magnetic stability in nanographenes is thus far greatly limited by the weak magnetic exchange coupling, which… 
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