Some photos and geekings from a scientist and all-round nerd.
Two perfect honeycomb domains of graphene meet at an angle. This angle isn't the ideal 60°, so the hexagons at the border distort into pairs of pentagons and heptagons. The 5- and 7-sided rings bond the two lattices like a zipper. They form a periodic pattern that changes the properties of the whole single-atom-thick layer. Full text
Writing with atoms
"Johannes Gutenberg’s system of movable type brought the written word to the masses in the 15th century and changed the world. It catalysed the Renaissance and the scientific revolution, and has led to many aspects of the modern world that are now taken for granted ... In this paper a novel lithography system is described, in which an STM tip is used to remove single oxygen adatoms from the oxidised molybdenum surface." Full Text
Simulated molecular structures
"Control over molecules on the atomic scale is routine in nature, for without it hemoglobin could not transport oxygen and almost all other biological processes would be impossible. However, such precise manipulation of matter on the smallest scale is still some way off for humanity ... The results of this work demonstrate the physical manipulation of an axial bond through the application of heat, charge transfer from the substrate to the molecule, and the stabilizing effect of the underlying Ag(111) surface on the oxidation state of the central TM ion and the porphyrin itself." Full text
This series of images shows arrays of molecules with some holding a single oxygen atom in their centres (bright dots), and proves using statistics that the bright dots are single atoms, not pairs of oxygens. Full text
Stacked graphene layers with single carbon atoms between the layers. These defects can be common in multilayer graphene and can move about at room temperature. Full text