Sputtering Bi(111) with argon ions raises the Fermi-level density of states by about a factor of 3, an effect the authors attribute to monolayer steps and type-A bilayer edges using UPS and DFT.
(a) Deconvolved step heights of the sputtered surface shown in (b); step heights corresponding to monolayer steps ( ≈2.7 Å) are indicted by red arrows
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Surface Modification and Subsequent Fermi Density Enhancement of Bi(111)
Sputtering Bi(111) with argon ions raises the Fermi-level density of states by about a factor of 3, an effect the authors attribute to monolayer steps and type-A bilayer edges using UPS and DFT.