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NIST X-ray Photoelectron Spectroscopy Database (SRD 20), Version 5.0
Reliable, with one-point correction of energy scale
Comment:
The sample was prepared from corresponding tetrathiometallates ammonia by decomposition in vacuum by heating to 523 K. The surface was cleaned by Ar+ ion bombardment (Ep = 800 eV, Ip = 20 mA, time = 3 - 5 min).