TITLE

Probing negative differential resistance on [formula] surface with scanning tunneling microscopy

AUTHOR(S)
Weihua Wang; Aidi Zhao; Bing Wang; Hou, J. G.
PUB. DATE
June 2009
SOURCE
Applied Physics Letters;6/29/2009, Vol. 94 Issue 26, p262108
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present our study on the [formula] surface using scanning tunneling microscopy/spectroscopy. The results reveal that the well defined localized surface-state bands S2/S3 in the surface with lightly doped Si substrate play an important role in electron transport. The relative wide space charge layer beneath the surface interplays with the localized surface states, thus leading to the effect of the negative differential resistance.
ACCESSION #
42961921

 

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