Phys. Rev. Lett. 60, 1049–1052 (1988)Atom-resolved surface chemistry using scanning tunneling microscopyReceived 7 January 1988; published in the issue dated 14 March 1988 We use scanning tunneling microscopy to investigate the reactivity of the dangling-bond states of Si(111)-(7×7). The reaction with NH3 is used as a prototype. We find that Si rest atoms are more reactive than Si adatoms and that center adatoms are more reactive than corner adatoms. Using atom-resolved electronic spectra, we probe the dangling-bond states on both clean and NH3-exposed surfaces. We find significant interactions and charge transfer between sites which strongly influence surface reactivity. © 1988 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.60.1049
DOI:
10.1103/PhysRevLett.60.1049
PACS:
61.16.Di, 73.20.At, 82.65.Jv
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.