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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:
Ge(111)-c(2x8). The sample was cleaned by several cycles of Ar+ ion bombardment (Ep = 500 eV) while annealing at 773 K followed by 15 min anneals at 1073 K. Peak locations: Voigt function. Branching ratio = 0.620. The intensity ratio of the surface/bulk components was 0.225.