Understanding the Edelstein Effect: Get the Answers You Need

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SUMMARY

The Edelstein effect describes how a charge current leads to the displacement of the Fermi contour, resulting in spin density accumulation along an orthogonal direction, thereby generating a spin current. The discussion highlights a common misunderstanding regarding the visualization of spin accumulation, particularly along the y-axis. Clarification was achieved through a deeper examination of the underlying physics, confirming that the spin current indeed arises from the displacement of the Fermi contour in response to the charge current.

PREREQUISITES
  • Understanding of charge currents and Fermi contours
  • Basic knowledge of spintronics and spin currents
  • Familiarity with the principles of spin density accumulation
  • Conceptual grasp of orthogonal vector components in physics
NEXT STEPS
  • Study the mathematical formulation of the Edelstein effect
  • Explore spintronics applications in modern electronics
  • Investigate the role of Fermi contours in quantum mechanics
  • Learn about experimental methods to visualize spin currents
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Physicists, electrical engineers, and students in materials science interested in spintronics and the Edelstein effect.

semc
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Hi, I have been trying to understand the Edelstein effect but it seems like everywhere I look, I get the same explanation which I don't understand. So everyone says that if you have a charge current, the Fermi contour will be displaced and spin density will accumulate along the orthogonal direction resulting in a spin current. I don't see the spin accumulation along the y-axis. How do we get that conclusion from this picture?
upload_2018-11-11_14-54-16.png
 

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Ok I misunderstood the meaning...Got it now
 

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