Abstract
Transition of gold (001) nanofilm to a (111) was observed in an ultrahigh vacuum electron microscope. The critical thickness of the nanofilm was measured by electron holography to be eight atom layers. These nanofilms ranged from 2 to 20 nm in length. Analyzing the nanofilms by high resolution electron microscopy and electron diffraction, the lattice spacing of the film was isotropically compressed by – , similar to a hexagonal lattice in surface reconstruction. The experiments show that the nanofilm structure is dominated by surfaces.
- Received 31 August 1998
DOI:https://doi.org/10.1103/PhysRevLett.82.751
©1999 American Physical Society