Direct majority-minority sublattice coupling of dibenzotriangulene units on Au(111) produces ferromagnetic dimers (quintet) and trimers (septet) with an inter-unit exchange of 7 meV, bypassing the spin-quenching pentagonal rings that plagued earlier triangulene couplings.
Colored circles indicate positions at which the spectra shown in panel c have been recorded
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A Route Toward the On-Surface Synthesis of Organic Ferromagnetic Quantum Spin Chains
Direct majority-minority sublattice coupling of dibenzotriangulene units on Au(111) produces ferromagnetic dimers (quintet) and trimers (septet) with an inter-unit exchange of 7 meV, bypassing the spin-quenching pentagonal rings that plagued earlier triangulene couplings.