Fig. 1: Fe atoms atop the nitrogen site of the Cu2N surface.
From: Complete reversal of the atomic unquenched orbital moment by a single electron
a STM constant-current topography (30 mV, 20 pA) of Fe atoms on a Cu2N/Cu3Au(100) surface. To the bottom right, there are two Fe atoms bound to copper sites, and at the top, three Fe atoms atop nitrogen sites with larger apparent heights. Scale bar: 2 nm. b Side and top view of the binding geometry for the Fe atom (red) atop a N atom in the Cu2N network (Cu brown, N blue) on a Cu3Au crystal (Cu gray, Au yellow). c Calculated positive (red) and negative (blue) electron spin density.
