ADSORPTION-SITE MIXING AT A CONTINUOUS ORDER-DISORDER PHASE-TRANSITION

Article

关键词: ENERGY ELECTRON-DIFFRACTION;    LEED;    SULFUR;    DLEED;   

DOI  :  10.1103/PhysRevB.52.2138

来源: SCIE

【 摘 要 】

The temperature-dependent probability of occupation of the two threefold-coordinated adsorption sites was determined for the system S/Ru(0001) at a coverage of 0.33, analysing energy-dependent intensity curves [I(E) curves] in low-energy electron diffraction of the ordered root 3 x root 3R30 degrees phase and of the disordered system. We show that this probability agrees fully with a lattice gas model containing a finite difference in adsorption energy between these sites.

【 授权许可】

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