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      On the structural and electronic properties of Ir-silicide nanowires on Si(001) surface

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      Author
      Fatima
      Oguz I. C.
      Çakır, D.
      Hossain, S.
      Mohottige, R.
      Gulseren, O.
      Oncel, N.
      Date
      2016
      Source 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
      Article
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      Abstract
      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
      Calculations
      Density 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
      Permalink
      http://hdl.handle.net/11693/36647
      Published Version (Please cite this version)
      https://.doi.org/10.1063/1.4961550
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