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NIST X-ray Photoelectron Spectroscopy Database (SRD 20), Version 5.0
Reliable (reported energy within 300 eV of a reference energy)
Comment:
Sb-doped Ge(111)-c(2x8) with a resistivity of 1 ohm cm. The sample was cleaned by cycles of Ar+ ion bombardment and annealing (T = 1100 K). The spectra were recorded at normal emission and 65 degrees. Branching ratios of the bulk and surface states were 0.625 and 0.58, respectively.