We investigate the intercalation of epoxy resin into a Weyl semimetal, ${\mathrm{WTe}}_2$, by using a scanning tunneling microscopy. We show that intercalant molecules have self-similar height variations with the silver-mean quasiperiodicity and also that they create phason and soliton defects to yield a mean coherence length of 15 sequential order. In addition, we unravel that weak quasiperiodic potentials imposed by the intercalation layer drive a ${\mathrm{WTe}}_2$ surface to have an enhanced conductance near the Fermi level while keeping its semimetal phase, providing a direct verification of theoretical prediction.

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• Intercalation
• Phasons
• Quasicrystals
• Weyl semimetal
• Scanning tunneling microscopy
• Scanning tunneling spectroscopy