Abstract
The adsorption and structural rearrangement of Rh, Ir, and Pt on a macroscopic (110) single-crystal surface of W is studied as a function of coverage and temperature by low-energy electron-diffraction and work-function-change measurements. Long linear chains along the substrate 〈111〉 directions and tendency to order into a chain lattice are found. The linear structure is observed to be much more stable than on the small surfaces used in field-ion microscopy.
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