Atomic Engineering of Photon Emission with a Scanning Tunneling Microscope
Abstract
We present measurements of photon emission from individual several-atom silver chains on the NiAl(110) surface, excited by tunneling electrons in a scanning tunneling microscope (STM). The chains were assembled by manipulating single silver atoms on the NiAl(110) surface with the STM. The photon energy of this emission can be tuned by appending a single atom to the chain. These changes in photon emission result from changes in the electronic structure of the silver chain, each electronic state inside the chain being associated with a distinct channel of emission.
- Publication:
-
Physical Review Letters
- Pub Date:
- May 2003
- DOI:
- 10.1103/PhysRevLett.90.216110
- Bibcode:
- 2003PhRvL..90u6110N
- Keywords:
-
- 68.37.Ef;
- 73.20.Mf;
- 73.22.-f;
- 73.40.Gk;
- Scanning tunneling microscopy;
- Collective excitations;
- Electronic structure of nanoscale materials: clusters nanoparticles nanotubes and nanocrystals;
- Tunneling