A lattice-aware Coulomb interaction for bilayer systems is derived, revealing plasmon mode behavior that depends on interlayer hopping and momentum along the stack.
3 – 8) imply that the gap of plasmon modes at q∥ ≈ (0, 0) depends on tz in a nontrivial way
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Theory of charge dynamics in bilayer electron system with long-range Coulomb interaction
A lattice-aware Coulomb interaction for bilayer systems is derived, revealing plasmon mode behavior that depends on interlayer hopping and momentum along the stack.