X-ray and neutron diffraction of yttrium-barium-copper-oxide: Modeling diffraction intensity variations produced by surface leaching

Journal Article

High normal current fluences have long been reported to produce major changes in the x-ray diffraction pattern of YBa2Cu3O7-x (YBCO). These x-ray diffraction effects have now been shown to result from the removal of barium from the YBCO near-surface lattice together with the formation of a thin barium oxide overlayer. Neutron diffraction reveals that the bulk crystallographic structure remains unaltered by charge fluences of more than 40 million C/cm2, and Auger electron spectroscopy confirms the presence of surface barium enrichment.

Duke Authors

Cited Authors

  • Watkins, SA; Cocks, FH

Published Date

  • 1999

Published In

  • Journal of Materials Research

Volume / Issue

  • 14 / 7

Start / End Page

  • 2773 - 2777