2021/3/5
Co/Cu(111) H.C. Monoharan, C.P. Lutz, D.M. Eigler Nature 403 (2000) 512
• Association: the bias was raised to 500 mV for 10 s
• It is not possible to break the C-H and C-C bonds with a single electron process at this voltage, especially as their bond energies are about 2 and 3 times higher than the C-I bond.
Pried them apart into iodine and phenyl (C6H5) by injecting electrons from the STM tip (a).
Used the tip to pull the iodine away (b and c) and draw the phenyl molecules closer together (d).
MIX-AND-MATCH molecule: Atomic engineers eventually hope to create molecules from scratch, adding atoms exactly as needed to perform specific functions. This molecule, with 18 cesium and 18 iodine atoms, was built--one atom at a time--with a STM
2021/3/5