Electrical rectification by selective wave-function coupling in small Ag clusters on Si(111)-(7x7)
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AbstractA cluster consisting of as few as three Ag atoms deposited on Si(111)-(7x7) surface was found to behave as a strong electric rectifier, with a rectification ratio as large as similar to 150. Based on first-principles calculations, we found that the wave functions of electronic states at different energies spread out from the surface to different distances. We demonstrated by theoretical simulations and experiments that the observed rectification is a result of coupling the scanning tunneling microscope tip with selective wave functions of the cluster.
All Author(s) ListHu SL, Zhao AD, Kan E, Cui XF, Zhang XQ, Ming FF, Fu Q, Xiang HJ, Yang JL, Xiao XD
Journal namePhysical review B: Condensed matter and materials physics
Year2010
Month3
Day1
Volume Number81
Issue Number11
PublisherAmerican Physical Society
ISSN1098-0121
eISSN1550-235X
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesPhysics; Physics, Condensed Matter; PHYSICS, CONDENSED MATTER

Last updated on 2021-02-03 at 23:51