▎ 摘　　要

We show that hexagonal antidot lattices of monolayer graphene exhibited the Altshuler-Aronov-Spivak (AAS) effect in low field magnetoresistance. In higher magnetic fields, Aharonov-Bohm-type oscillations were visible. The phase of AAS oscillation indicated that the chirality effect of graphene is suppressed because of inter-valley scattering due to boundary scatterings.