Science Advances

Supplementary Materials

This PDF file includes:

  • section S1. Low-energy effective Hamiltonians
  • section S2. Nonreciprocal tunneling in photonic graphene with a single potential barrier
  • section S3. Specific designs of spin-valley–coupled metacrystals with one-way Dirac cones
  • fig. S1. Photonic bands and transmission spectra.
  • fig. S2. Schematics of the meta-waveguide design and band structures.

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