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We use the Wick-rotated time-dependent supersymmetry to construct models oftwo-dimensional Dirac fermions in presence of an electrostatic grating. We showthat there appears omnidirectional perfect transmission through the grating atspecific energy. Additionally to being transparent for incoming fermions, thegrating hosts strongly localized states.

Super-Klein tunneling of Dirac fermions through electrostatic gratings in graphene