FatimaOguz I. C.Çakır, D.Hossain, S.Mohottige, R.Gulseren, O.Oncel, N.2018-04-122018-04-1220160021-8979http://hdl.handle.net/11693/36647Iridium (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.EnglishCalculationsDensity functional theoryElectronic propertiesNanowiresScanning tunneling microscopySilicidesSiliconAb initio calculationsDFT calculationDimer atomsI - V curveScanning tunneling microscopy/spectroscopySi(001) surfacesSilicide nanowiresStructural and electronic propertiesIridiumArticle10.1063/1.4961550