Modulation of Kekulé adatom ordering due to strain in graphene

Abstract

Intervalley scattering of carriers in graphene at `top' adatoms may give rise to a hidden Kekulé ordering pattern in the adatom positions. This ordering is the result of a rapid modulation in the electron-mediated interaction between adatoms at the wavevector $K-K^{\prime }$, which has been shown experimentally and theoretically to dominate their spatial distribution. Here we show that the adatom interaction is extremely sensitive to strain in the supporting graphene, which leads to a characteristic spatial modulation of the Kekulé order as a function of adatom distance. Our results suggest that the spatial distributions of adatoms could provide a way to measure the type and magnitude of strain in graphene and the associated pseudogauge field with high accuracy.

9 pages, 7 figures

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Cited by in corpus (9)

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• Dynamical Floquet spectrum of Kekulé-distorted graphene under normal incidence of electromagnetic radiation
• Resonant transport in Kekule-distorted graphene nanoribbons
• Valley-driven Zitterbewegung in Kekulé-distorted graphene
• Topological Magnon Insulator with a Kekule Bond Modulation
• Optoelectronic Fingerprints of Interference between Different Charge Carriers in Graphene Superlattices and Analogies to Twisted Graphene Bilayers
• Competition of trivial and topological phases in patterned graphene based heterostructures
• Floquet Control of Electron and Exciton Transport in Kekulé-Distorted Graphene
• Interplay of Kekulé distortions and laser fields in graphene