Coverage-dependent core-level binding-energy shifts of alkali-metal atoms on metal surfaces
Date of Original Version
Coverage-dependent core-level binding energies of the Na 2p level of Na adsorbed on Cu(111) and Ni(111) surfaces are measured and compared to a first-principles calculation of Na on jellium. Similar behavior of the Na 2p level for both Cu and Ni suggests a substrate-independent core-level shift mechanism. The result of a local-density-functional calculation of the electrostatic potential-energy change as a function of alkali-metal coverage allows us to separate out the contributions of initial- and final-state effects in the coverage dependence of alkali-metal core-level binding-energy shifts. © 1993 The American Physical Society.
Physical Review B
Shi, X., D. Tang, D. Heskett, K. D. Tsuei, H. Ishida, Y. Morikawa, and K. Terakura. "Coverage-dependent core-level binding-energy shifts of alkali-metal atoms on metal surfaces." Physical Review B 47, 7 (1993): 4014-4017. doi:10.1103/PhysRevB.47.4014.