This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Scanning Tunneling Microscope Structure . Structure made with scanning tunneling microscope at the NIST Nanoscale Physics Facility The larger blue peaks are pairs of cobalt atoms while the two smaller peaks are single cobalt atoms The swirls on the copper surface illustrate how the cobalt and copper electrons interact with each other