Soft x-ray diffraction of striated muscle
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
A scanning-tunneling-microscopy study for a surface formed by the chemisorption of oxygen on Cu(100) and displaying a (22 × 2) R45°low-energy-electron-diffraction (LEED) pattern shows the expected rotationally related domains but no unambiguous evidence for coexisting regions of c(2×2) symmetry. There is a clear pairing of atomic rows, but a low corrugation (0.2). These features are consistent with results from a new LEED multiple-scattering analysis applied to six diffracted beams for normal incidence. The missing-row model recently proposed [Zeng et al., Surf. Sci. 208, L7 (1989)] is extended to include a 0.30- lateral relaxation for top-layer copper atoms adjacent to the missing rows, and small (around 0.10-) vertical relaxations in both the first and second copper layers. These features yield the best correspondence between experimental and calculated LEED intensities yet reached for this surface structure. © 1990 The American Physical Society.
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
Ranulfo Allen, John Baglin, et al.
J. Photopolym. Sci. Tech.
R. Ghez, M.B. Small
JES
J.C. Marinace
JES