Building Alloys from Single Atoms:  Au−Pd Chains on NiAl(110)

Well-ordered mono-elemental and alloy chains have been assembled from single Au and Pd atoms on a NiAl(110) surface with a scanning tunneling microscope. Spatially resolved conductance measurements revealed the development of quantum well states in the different atomic chains, which are aligned on f...

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Published in:The journal of physical chemistry. B 2004-09, Vol.108 (38), p.14616-14619
Main Authors: Nilius, N, Wallis, T. M, Ho, W
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Language:English
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cited_by cdi_FETCH-LOGICAL-a295t-380e334b134adfa888b6216cb5093b86ffb77ccaaad5f6bdd92d95a55b9ee40c3
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description Well-ordered mono-elemental and alloy chains have been assembled from single Au and Pd atoms on a NiAl(110) surface with a scanning tunneling microscope. Spatially resolved conductance measurements revealed the development of quantum well states in the different atomic chains, which are aligned on free-electron like bands. Effective electron mass and onset energy of states in mixed Au−Pd chains lie between the values obtained for pure Au and Pd chains. The results demonstrate effective hybridization of Au and Pd induced states to a delocalized electronic system, in correspondence with the perfect miscibility of the respective bulk materials.
doi_str_mv 10.1021/jp049127r
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title Building Alloys from Single Atoms:  Au−Pd Chains on NiAl(110)
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