Abstract
Microscopic `work function' is evaluated by local tunneling barrier height (LBH) measurements of clean and Ba-deposited Si(111) surfaces in order to clarify the mechanism of work function reduction by Ba deposition. Atomically resolved LBH images are obtained corresponding to scanning tunneling microscopy (STM) images. The difference in the LBH measurement for clean Si(111)-(7×7) and Ba deposited Si(111)-(3×1) surfaces agrees with macroscopic work function reduction due to Ba adsorbate. The result suggests that the work function is strongly related to the atomic arrangement of the Si(111) surface induced by Ba deposition.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
