On the structural and electronic properties of Ir-silicide nanowires on Si(001) surface
Author
Fatima
Oguz I. C.
Çakır, D.
Hossain, S.
Mohottige, R.
Gulseren, O.
Oncel, N.
Date
2016Source Title
Journal of Applied Physics
Print ISSN
0021-8979
Publisher
American Institute of Physics Inc.
Volume
120
Issue
9
Pages
095303-1 - 095303-5
Language
English
Type
ArticleItem Usage Stats
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Show full item recordAbstract
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.
Keywords
CalculationsDensity functional theory
Electronic properties
Nanowires
Scanning tunneling microscopy
Silicides
Silicon
Ab initio calculations
DFT calculation
Dimer atoms
I - V curve
Scanning tunneling microscopy/spectroscopy
Si(001) surfaces
Silicide nanowires
Structural and electronic properties
Iridium