Title: Long-range periodicity and disorder in two-dimensional arrays of metallic dots studied by x-ray diffraction
Authors: Rafaja, D ×
Valvoda, V
Kub, J
Temst, Kristiaan
Van Bael, Margriet
Bruynseraede, Yvan #
Issue Date: Jun-2000
Publisher: Published for the American Physical Society by the American Institute of Physics
Series Title: Physical Review B, Condensed Matter vol:61 issue:23 pages:16144-16153
Abstract: High-resolution x-ray diffraction was employed to investigate the ordering of Au dots grown on silicon substrates using molecular-beam epitaxy and electron-beam lithography. A mapping near the origin of the reciprocal space yielded that the mean distances between the next neighbors in two mutually perpendicular directions are 2 mu m as intended in the deposition process. The reciprocal space mapping also confirmed the rectangular shape of the dots. In a further step, the samples were rotated in their plane to turn the trace of the diffraction plane into a general direction regarding the direction of the dots. This rotation created an artificial modulation, i.e., an additional long-range periodicity, which was exploited to study the ordering of dots in submillimeter scale. Diffraction phenomena observed near the origin of the reciprocal space are concurrently explained using the kinematic diffraction theory and the crystallographic representation.
ISSN: 0163-1829
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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