Ordering and segregation at (001) surfaces of Cu3Au |
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| Authors: | J.M. Sanchez J.L. Moran-López |
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| Affiliation: | Henry Krumb School of Mines, Columbia University, New York, New York 10027, USA;Department of Physics, University of California, Berkeley, California 94720, USA |
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| Abstract: | The interplay of surface ordering and segregation at the (001) surface of Cu3Au is studied. The calculations are carried out using the tetrahedron approximation of the cluster variation method. The almost continuous disordering observed by low-energy electron diffraction and the Au enrichment observed by low-energy ion scattering spectroscopy can be consistently and accurately reproduced by our model. |
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