Diffuse x-ray scattering from short-period W/C multilayers at in-plane momentum transfers 0.10-0.17 {angstrom}{sup -1}.

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X-ray scattering measurements at 10 keV from multilayers having a period of 24.8 {angstrom} and consisting of 100 W/C bilayers are reported. Specular scans revealed first-order reflectivities in the range 73.5% to 78.0% with bandpasses in the range of 1.5% to 1.7%. Total roughness (or interface grading) values deduced from fitting to the specular data only were in the range 2.5 to 3.0 {angstrom} for the last-to-grow surface of the W layers. Diffuse scattering measurements were made in a geometry that permitted investigation of in-plane momentum transfers up to 0.17 {angstrom}{sup {minus}1}. This is roughly an order of magnitude larger ... continued below

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14 p.

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Headrick, R. L.; Liu, C. L. & Macrander, A. T. April 20, 1999.

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X-ray scattering measurements at 10 keV from multilayers having a period of 24.8 {angstrom} and consisting of 100 W/C bilayers are reported. Specular scans revealed first-order reflectivities in the range 73.5% to 78.0% with bandpasses in the range of 1.5% to 1.7%. Total roughness (or interface grading) values deduced from fitting to the specular data only were in the range 2.5 to 3.0 {angstrom} for the last-to-grow surface of the W layers. Diffuse scattering measurements were made in a geometry that permitted investigation of in-plane momentum transfers up to 0.17 {angstrom}{sup {minus}1}. This is roughly an order of magnitude larger than is possible in conventional rocking scans. Reasonable fitting results were obtained for an in-plane correlation function that has a Fourier transform proportional to exp(-vq{sub y}{sup 2}{vert_bar}z{sub i}-z{sub j}{vert_bar}), where z{sub i}-z{sub j} is the average separation between the i{sup th} and j{sup th} interfaces and q{sub y} is the in-plane momentum transfer.

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14 p.

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OSTI as DE00011768

Medium: P; Size: 14 pages

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  • Advanced Studies Institute (ASI-002) Exploration of Subsurface Phenomena by Particle Scattering, Monterey, CA (US), 10/19/1998--10/23/1998

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  • Report No.: ANL/XFD/CP-98830
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 11768
  • Archival Resource Key: ark:/67531/metadc622735

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  • April 20, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 7, 2017, 2:07 p.m.

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Headrick, R. L.; Liu, C. L. & Macrander, A. T. Diffuse x-ray scattering from short-period W/C multilayers at in-plane momentum transfers 0.10-0.17 {angstrom}{sup -1}., article, April 20, 1999; Illinois. (digital.library.unt.edu/ark:/67531/metadc622735/: accessed April 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.