SpinPolarized Transport in Carbon Nanotubes

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Spin-Polarized Transport in Carbon Nanotubes
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Scheme

• Carbon Nanotubes
• Spin-polarized transport in Carbon Nanotubes
• Summary

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Carbon Nanotubes
Multi-Walled NanoTube (MWNT)
S. Iijima. "Helical microtubules of graphitic
carbon." Nature 354 56 (1991)
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Carbon Nanotubes

• Fascinating electronic and mechanical
• Properties
• Depending on their chiralities, nanotubes can be
  metallic, semimetallic or semiconducting
• 2. Remarkably high Youngs moduli
• and tensile strength

Imagine the possibilities materials with ten
times the strength of steel and only a small
fraction of the weight!
------Former
resident Bill Clinton
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Carbon Nanotubes
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Spin-Polarized Transport
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Spin-Polarized Transport
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Spin-Polarized Transport
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Summary

• Strongly suggest that spin injection and
  spin-coherent transport is possible through MWNTs
• Opens a door to study the influence of spin
  injection on spin polarization of the carbon
  nanotube

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Summary

• Successfully transporting spin-polarized currents
  through non-magnetic materials is necessary for a
  new generation of spintronics devices
• Use carbon nanotubes as scanning probes in
  spin-sensitive scanning probe microscopy ?