Table 1. Experimental and Calculated WFs Φ and WF Changes ΔΦ for Adsorption of 5A on Bare Ag(001) and 2 ML MgO(001)/Ag(001).

	Φexp (Φtheo), eV	ΔΦexp (ΔΦtheo), eV
Ag(001)	4.3(4.28)
5A/Ag(001)	3.9(3.91)	–0.4(−0.37)
Ag(001)	4.3(4.28)
2 ML MgO(001)/Ag(001)	2.6(3.04)	–1.7(−1.24)
5A/2 ML MgO(001)/Ag(001)	3.8(3.78)	+1.2(+0.74)