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Emergent fermions arising from the excess electrons of electrides provide a new perspective for exploring semimetal states with unique Fermi surface geometries. In this study, a class of unique two‐dimensional (2D) highly anisotropic Dirac fermions is designed using a sandwich structure. Based on the structural design and first‐principles calculations, 2D electride MB (M = Ca/Sr, B = Cl/Br/I) is an...