Fig. 2From: Angle-resolved photoemission spectroscopy for the study of two-dimensional materials a A schematic of the zone plate based nanoARPES system. b Micro-ARPES data from graphene on copper substrate. c Real space image of copper state obtained by nano-ARPES mapping. Inset is an optical image of the same sample. d, e Real space image of graphene grains by measuring graphene state at the A and B positions indicated as yellow boxes in c, respectively. The figure is reproduced from Ref. [65] with permissionBack to article page