Abstract
Low-temperature scanning tunneling microscopy and spectroscopy at 7 K was used to assemble and characterize native adatom islands of successive size on the Cu(111) surface. Starting from the single adatom we observe the formation of a series of quantum states which merge into the well known two-dimensional Shockley surface state in the limit of large islands. Our experiments reveal a natural physical link between this fundamental surface property and the hybrid resonance associated with the single adatom.
- Received 28 June 2005
DOI:https://doi.org/10.1103/PhysRevLett.95.136801
©2005 American Physical Society