On the structural and electronic properties of Ir-silicide nanowires on Si(001) surface
Oguz I. C.
Journal of Applied Physics
American Institute of Physics Inc.
095303-1 - 095303-5
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Iridium (Ir) modified Silicon (Si) (001) surface is studied with Scanning Tunneling Microscopy/Spectroscopy (STM/STS) and Density Functional Theory (DFT). A model for Ir-silicide nanowires based on STM images and ab-initio calculations is proposed. According to our model, the Ir adatom is on the top of the substrate dimer row and directly binds to the dimer atoms. I-V curves measured at 77 K shows that the nanowires are metallic. DFT calculations confirm strong metallic nature of the nanowires.
Density functional theory
Scanning tunneling microscopy
Ab initio calculations
I - V curve
Scanning tunneling microscopy/spectroscopy
Structural and electronic properties