Differential anomalous-x-ray-scattering study of icosahedral and amorphous Pd/sub 58. 8/U/sub 20. 6/Si/sub 20. 6/

Journal Article · Mon Jul 07 04:00:00 EDT 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.57.114· OSTI ID:5549901

Kofalt, D D; Nanao, S; Egami, T; Wong, K M; Poon, S J

The total and differential atomic pair-correlation functions of an icosahedral (quasicrystalline) solid were determined for the first time, directly by the differential anomalous-x-ray-scattering technique using synchrotron radiation. The observed atomic distances involving uranium atoms in icosahedral Pd/sub 58.8/U/sub 20.6/Si/sub 20.6/ suggest the presence of a quasicrystalline sublattice with vertex decoration. The pair distribution functions in the icosahedral and amorphous phases are similar up to the second-nearest neighbors, or up to 6 A-circle.

• Research Organization: Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104
• OSTI ID: 5549901
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 57:1; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ACTINIDE COMPOUNDS
AMORPHOUS STATE
BREMSSTRAHLUNG
COHERENT SCATTERING
CORRELATION FUNCTIONS
DATA
DIFFRACTION
DISTRIBUTION FUNCTIONS
ELECTROMAGNETIC RADIATION
ENERGY RANGE
EXPERIMENTAL DATA
FUNCTIONS
INFORMATION
KEV RANGE
KEV RANGE 10-100
NUMERICAL DATA
PALLADIUM COMPOUNDS
PALLADIUM SILICIDES
RADIATIONS
SCATTERING
SILICIDES
SILICON COMPOUNDS
STRUCTURE FACTORS
SYNCHROTRON RADIATION
TRANSITION ELEMENT COMPOUNDS
URANIUM COMPOUNDS
URANIUM SILICIDES
X-RAY DIFFRACTION