Dynamics and energetics of Ge(001) dimers

Zandvliet, H. (Speaker), van Houselt, A. (Contributor), Raoul van Gastel (Contributor), Poelsema, B. (Contributor)

Activity: Talk or presentationOral presentation

Description

The dynamic behavior of surface dimers on Ge(001) has been studied by positioning the tip of a scanning tunneling microscope over single flip-flopping dimers and measuring the tunneling current as a function of time. We observe that not just symmetric, but also asymmetric appearing dimers exhibit flip-flop motion. The dynamics of flip-flopping dimers can be used to sensitively gauge the local potential landscape of the surface. Through a spatial and time-resolved measurement of the flip-flop frequency of the dimers, local strain fields near surface defects can be accurately probed.
Period27 Mar 2007
Held atDPG Frühjahrstagung 2007 Regensburg
Event typeConference
LocationRegensburg, Germany
Degree of RecognitionInternational

Keywords

  • METIS-245095