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Vibrational excitations in magnetic triangular nanographenes
Nils Krane, Elia Turco, Annika Bernhardt +3
Inelastic electron tunneling spectroscopy (IETS) is a powerful measurement technique often used in scanning tunneling spectroscopy to probe excited states of various nanostructures…
Gapless spin excitations in nanographene-based antiferromagnetic spin-1/2 Heisenberg chains
Chenxiao Zhao, Lin Yang, João C. G. Henriques +8
Haldane's seminal work established two fundamentally different types of excitation spectra for antiferromagnetic Heisenberg quantum spin chains: gapped excitations in integer-spin…
The role of precursor coverage in the synthesis and substrate transfer of graphene nanoribbons
Rimah Darawish, Oliver Braun, Klaus Muellen +4
Graphene nanoribbons (GNRs) with atomically precise widths and edge topologies have well-defined band gaps that depend on ribbon dimensions, making them ideal for room-temperature…
Conformational tuning of magnetic interactions in coupled nanographenes
Gonçalo Catarina, Elia Turco, Nils Krane +6
Phenalenyl (CH) is an open-shell spin- nanographene. Using scanning tunneling microscopy (STM) inelastic electron tunneling spectroscopy (IETS), covalently-bonded p…
Magnetic Excitations in Ferromagnetically Coupled Spin-1 Nanographenes
Elia Turco, Fupeng Wu, Gonçalo Catarina +5
In the quest for high-spin building blocks to form covalently bonded 1D or 2D materials with controlled magnetic interactions, -electron magnetism provides an ideal framework to…
Electronic decoupling and hole-doping of graphene nanoribbons on metal substrates by chloride intercalation
Amogh Kinikar, Thorsten G. Englmann, Marco Di Giovannantonio +14
Atomically precise graphene nanoribbons (GNRs) have a wide range of electronic properties that depend sensitively on their chemical structure. Several types of GNRs have been synth…
Tunable topological phases in nanographene-based spin-1/2 alternating-exchange Heisenberg chains
Chenxiao Zhao, Gonçalo Catarina, Jin-Jiang Zhang +8
Unlocking the potential of topological order within many-body spin systems has long been a central pursuit in the realm of quantum materials. Despite extensive efforts, the quest f…