Morphological and molecular processes observed using scanning tunneling microscopy on organic conductors

Step‐by‐step surface layer restoration in organic superconducting salts has been observed using STM. The Figure shows a step, approximately 1.8 nm in height, with an uneven boundary. Over a period of time the step edge is seen to “heal” under positive tip bias, where the current flows from the tip to the sample. Under reversed bias the degradation of the surface has been observed.