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Journal Article

Building alloys from single atoms: Au–Pd chains on NiAl(110)


Nilius,  Niklas
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Nilius, N., Wallis, T. M., & Ho, W. (2004). Building alloys from single atoms: Au–Pd chains on NiAl(110). Journal of Physical Chemistry B, 108(38), 14616-14619. doi:10.1021/jp049127r.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0B33-A
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.