Heavy-boundary mode patterning and dynamics of topological phonons in polymer chains and supramolecular lattices on surfaces

HIGHLIGHTS

• What: The authors show by means of molecular simulations, that surface-confined Su-Schrieffer-Heeger (SSH) phonon analogue models express robust topological phonon boundary modes at heavy boundaries and under thermal fluctuations. The authors show that upon excitation of a single molecule, propagation along heavy-boundary modes differs from free boundary modes. The study of topology in the context of electronic band theory and corresponding topological phases of matter is widespread1-8 Equivalent topological concepts have been also applied to phononic systems9-18, in both crystalline materials19-24 and periodic artificial structures25-33, with the aim of . . .
  

   

  

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