Dynamical LEED analysis of Ni2P (0001)-1×1: Evidence for P-covered surface structure

Photoemission and LEED characterization of Ni2P(0001)

Ion bombardment of Ni2P(0 0 0 1) produces a disordered, Ni-rich surface. For annealing temperatures above 450 K, long range ordering occurs, and the surface Ni/P ratio decreases. Annealing above 700 K produces an ordered (1 · 1) hexagonal surface with a composition near that expected for a simple stoichiometric termination of the bulk structure. Variations in photoemission spectra are observed ...

Structure of Bare and Adsorbate-Covered GaN(0001) Surfaces

A review of surface structures of bare and adsorbate-covered GaN (0001) and (0001) surfaces is presented, including results for In, Mg, Si, and H adsorbates. Emphasis is given to direct determination of surface structure employing experimental techniques such as scanning tunneling microscopy, electron diffraction, and Auger spectroscopy, and utilizing first principles computations of the total ...

Unoccupied surface electronic structure of Gd(0001).

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...

Structure of the (111) surface of bismuth: LEED analysis and first-principles calculations

H. Mönig,1 J. Sun,2 Yu. M. Koroteev,3,4 G. Bihlmayer,5 J. Wells,1 E. V. Chulkov,3,6 K. Pohl,2 and Ph. Hofmann1,* 1Institute for Storage Ring Facilities, University of Aarhus, 8000 Aarhus C, Denmark 2Department of Physics and Materials Science Program, University of New Hampshire, Durham, New Hampshire 03824, USA 3Donostia International Physics Center (DIPC), 20018 San Sebastián, Basque Country,...