Spin Hall Effect

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Spin Hall Effect
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Spin Hall Effect

• 1. Hall Effect
• 2. Spin Hall Effect (Theories)
• 3. Observation of Spin Hall Effect.
• 4. Summary

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Hall Effect
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Spin Hall Effect
In 1971, M.I Dyakonov and V.I.Perel predicted
theoretically Spin Hall Effect.
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Spin Hall Effect

• Impurities scattering (Extrinsic)

kf
kf
ki
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Spin Hall Effect

• Band Structure (Intrinsic, Strained)

PRL 92,126603 2004
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Spin Hall Effect

• The first Experiment that observed Spin Hall
  Effect

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Spin Hall Effect
n-GaAs 110
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Spin Hall Effect
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Spin Hall Effect
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Spin Hall Effect
In0.07Ga0.93As
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Spin Hall Effect
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Spin Hall Effect
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Spin Hall Effect

• The extremely important experiment in
  spintronics!!
• "The most exciting aspect of this finding is that
  you don't know exactly where it's going to lead"
  ---D.D.Awschalom
• Spintricity ?