Fig. 2

a Monochromated Cs-corrected HRTEM image of a monolayer RuO2 NS obtained using an 80 kV accelerating voltage. b Schematic atomic structure of monolayer a RuO2 NS
a Monochromated Cs-corrected HRTEM image of a monolayer RuO2 NS obtained using an 80 kV accelerating voltage. b Schematic atomic structure of monolayer a RuO2 NS