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Related Experiment Video

Updated: May 14, 2026

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
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Self-assembled nanowires with giant Rashba split bands.

Jewook Park1, Sung Won Jung, Min-Cherl Jung

  • 1Department of Physics and Center for Low Dimensional Electronic Symmetry, Pohang University of Science and Technology, Pohang, Korea.

Physical Review Letters
|February 5, 2013
PubMed
Summary

Platinum-induced silicon nanowires form a unique 1D giant Rashba system. This discovery offers potential for advanced silicon spintronics and Majorana fermion research.

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Area of Science:

  • Surface Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Investigating novel nanostructures on semiconductor surfaces is crucial for advancing electronic and spintronic applications.
  • Understanding one-dimensional (1D) electron systems and their properties, such as Rashba splitting, is key to developing new quantum devices.

Purpose of the Study:

  • To characterize platinum-induced nanowires on the Si(110) surface.
  • To explore the electronic band structure and electron confinement within these nanowires.
  • To identify the potential of these nanowires as a 1D giant Rashba system for future technologies.

Main Methods:

  • High-resolution scanning tunneling microscopy (STM) for structural analysis.
  • Angle-resolved photoemission spectroscopy (ARPES) to probe electronic band structure.

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Last Updated: May 14, 2026

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
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Published on: June 18, 2013

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
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  • Scanning tunneling spectroscopy (STS) to analyze local electronic states.

    • Main Results:

    • A well-ordered array of Pt-induced nanowires with 1.6 nm width and 2.7 nm separation was observed.
    • Fully occupied 1D bands exhibiting a large Rashba-type split dispersion were detected.
    • Evidence of well-confined 1D electron channels with density of states consistent with Rashba splitting was found.

    Conclusions:

    • The Pt-Si nanowires represent a unique 1D giant Rashba system with exceptionally large band splitting.
    • These self-assembled nanowires hold promise for silicon-based spintronics devices.
    • The system is a potential platform for the exploration of Majorana fermions.