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Atomic chains were assembled from single Au and Pd atoms on a NiAl(110) surface, using the tip of a scanning tunneling microscope. The electronic properties of the chains were investigated by spatially resolved conductance spectroscopy and microscopy, revealing the development of a one-dimensional, free-electron-like band. Onset energy, effective electron mass, and spatial localization of the band...
The adsorption process of O2 on Ru(0001) has been studied in the temperature range between 100K and 300K by means of low-temperature scanning tunnelling microscopy (STM). At temperatures below 130K the existence of amolecular precursor state leads to the formation of dense, disordered islands (partly with a (11) configuration). Between 160K and 170K the onset of diffusion of the chemisorbed O atoms...
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