Automated determination of complex surface structures by LEED

Automated Determination of Complex Surface Structures by LEED

STRUCTURE DETERMINATION OF THE CLEAN Co(1120) SURFACE BY LEED

The atomic structure of the (1120) surface of cobalt has been determined by LEED using six intensity spectra at normal incidence. The surface exhibits the truncated bulk structure with a contraction of the first interlayer spacing by about 8.5% with respect to the bulk value. Quantitative evaluation of the LEED spectra was done using Zanazzi and Jona’s and Pendry’s r-factors. The minimum averag...

Structural determination of the Bi(110) semimetal surface by LEED analysis and ab initio calculations

J. Sun,1,* A. Mikkelsen,2,† M. Fuglsang Jensen,2 Y. M. Koroteev,3,4 G. Bihlmayer,5 E. V. Chulkov,3,6 D. L. Adams,7 Ph. Hofmann,2 and K. Pohl1 1Department of Physics and Materials Science Program, University of New Hampshire, Durham, New Hampshire 03824, USA 2Institute for Storage Ring Facilities and Interdisciplinary Nanoscience Center (iNano), University of Aarhus, 8000 Aarhus C, Denmark 3Dono...

seismic imaging of complex structures by integrating pre-stack time migration and surface stacking methods

the conventional approach to seismic data analysis consists of two main steps: estimating seismic velocities, (the subsurface macro-model), and seismic imaging, (mapping of the reflected seismic energy to the reflector positions). the aim and the major challenge in the seismic data analysis is the construction of the best undistorted image. this challenge would be more problematic when geometri...

A Revised Leed Determination of the Relaxations Present at the (3 11) Surface of Copper

Low-energy electron diffraction (LEED) has been used to determine the structural relaxations present at the (3 1 1) surface of copper. Two sets of intensity vs energy curves were measured for normal incidence for 14 beams over a total energy range of 1932 eV. These data were compared with intensities calculated with the layer doubling method for a range of structural models, the comparisons bei...