Figure 4. Copper 2p region in the X-ray photoelectron spectrum of a Luristan bronze.<p>(a) Unetched surface, showing peaks from Cu(0) and Cu(II). (b) Surface after 30 min of bombardment with Ar<SUP>+</SUP>, showing only Cu(0) peaks. (Adapted with permission from Ref. 7.)</p>

September 1, 1999

Figure 4. Copper 2p region in the X-ray photoelectron spectrum of a Luristan bronze.
(a) Unetched surface, showing peaks from Cu(0) and Cu(II). (b) Surface after 30 min of bombardment with Ar⁺, showing only Cu(0) peaks. (Adapted with permission from Ref. 7.)