Studies of surface composition and structure of Cu3Pt(111) by low energy alkali ion scattering
作者： Y.G. Shen , D.J. O'Connor , K. Wandelt , R.J. MacDonald
DOI: 10.1016/0039-6028(95)00017-8
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摘要: Abstract The composition and structure of the Cu 3 Pt(111) surface have been investigated by low energy alkali ion scattering. top two layers was determined Li + scattering using selective geometries with calibration measurements on reference samples Cu(111) Pt(111). Under thermal equilibrium conditions, these results consistently showed a 80%Cu20%Pt in first layer, while second layer 69%Cu31%Pt. probed measuring intensity as function incident angle along main azimuthal directions. interpretation experimental data based chain model simulation. that Pt atoms were coplanar layer. A clustering effect has also tested 1 keV K revealed not clustered lack PtPt pair double peak long
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