Holographic atom imaging from experimental photoelectron angular distribution patterns
- Lawrence Livermore National Lab., CA (United States)
- International Business Machines Corp., Yorktown Heights, NY (United States). Thomas J. Watson Research Center
- Lawrence Berkeley Lab., CA (United States)
- Pennsylvania State Univ., University Park, PA (United States)
One of the most challenging areas of materials research is the imaging of technologically relevant materials with microscopic and atomic-scale resolution. As part of the development of these methods, near-surface atoms in single crystals were imaged using core-level photoelectron holograms. The angle-dependent electron diffraction patterns that constitute an electron hologram were two-dimensionally transformed to create a three dimensional, real-space image of the neighboring scattering atoms. They have made use of a multiple-wavenumber, phased-summing method to improve the atom imaging capabilities of experimental photoelectron holography using the Cu(001) and Pt(111) prototype systems. These studies are performed to evaluate the potential of holographic atom imaging methods as structural probes of unknown materials.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States); Brookhaven National Lab., Upton, NY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48; AC02-76CH00016
- OSTI ID:
- 10139147
- Report Number(s):
- UCRL-JC--114178; CONF-931108--98; ON: DE94009291
- Country of Publication:
- United States
- Language:
- English
Similar Records
Surface and near-surface atom imaging with photoelectron holography
Holographic imaging of atoms using multiple-wave-number electron angular distribution patterns