Magnetic Excitations in Ferromagnetically Coupled Spin-1 Nanographenes.

ABSTRACT: In the pursuit of high-spin building blocks for the formation of covalently bonded 1D or 2D materials with controlled magnetic interactions, π${\pi }$ -electron magnetism offers an ideal framework to engineer ferromagnetic interactions between nanographenes. As a first step in this direction, we explore the spin properties of ferromagnetically coupled triangulenes-triangular nanographenes with spin S=1${S = 1}$ . By combining in-solution synthesis of rationally designed molecular precursors with on-surface synthesis, we successfully achieve covalently bonded S=2${S = 2}$ triangulene dimers and S=3${S = 3}$ trimers on Au(111). Starting with the triangulene dimer, we meticulously characterize its low-energy magnetic excitations using inelastic electron tunneling spectroscopy (IETS). IETS rev

SUBMITTER: Turco E 

PROVIDER: S-EPMC11656132 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature