Controlled nanoscale morphology of hematite (0001) surfaces grown by chemical vapor transport

Stable alpha-Fe2O3 surfaces: A 3D rendering of the controlled nanoscale morphology observed on a hematite (0001) surface is shown in the Figure. This atomically flat surface is characterized by circular depressions with diameters on the order of hundreds of nanometers and depths of 2.2 +/- 0.2 angstrom. At room temperature, the surface is exceptionally stable, with no measured change following storage in air over several months.