Fig. 1
From: Doping induced Mott collapse and possible density wave instabilities in (Sr1−xLax)3Ir2O7
Surface La dopants. a Crystal structure and schematic of the IrO6 octahedral rotation in Sr3Ir2O7. b Atomic-resolution topography on x = 0.032 La-doped sample. VS = 200 mV, It = 100 pA. Scale bar: 10 nm. c, d Zoom-in on two types of La defects in b showing the reduction of local C4 rotation symmetry to C2. e, f Topographies taken with different bias voltages in a 6.5 nm by 6.5 nm area
