Pure spin current vs. spin-polarized charge current?

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SUMMARY

The discussion centers on the distinction between pure spin current and spin-polarized charge current, highlighting the confusion surrounding the concept of a current that does not involve charge flow. Participants express their struggles to comprehend how a pure spin current can exist independently of charge flow, emphasizing the need for clarity on this topic. The reference to a relevant paper from Nature provides additional context for those seeking a deeper understanding of these concepts in spintronics.

PREREQUISITES
  • Understanding of spintronics principles
  • Familiarity with current flow concepts in physics
  • Knowledge of charge carriers in materials
  • Basic grasp of quantum mechanics related to electron spin
NEXT STEPS
  • Research the principles of spintronics and its applications
  • Study the Nature paper on pure spin currents for in-depth analysis
  • Explore the role of charge carriers in spin-polarized currents
  • Learn about the experimental techniques used to measure spin currents
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Physicists, materials scientists, and researchers in the field of spintronics who are looking to clarify the concepts of spin current and charge current interactions.

sokrates
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Is there anyone who understands (or has ever heard of) the difference between a pure spin current and a spin-polarized charge current?

It causes a great deal of confusion for me, because I cannot imagine a current flowing without an accompanying charge flow... Guesses and conjectures are welcome. I have been struggling about this for quite some time now.

Here's the paper and the context if you are interested in learning more:
(hopefully you have a Nature subscription)

http://www.nature.com/nphys/journal/v4/n11/full/nphys1095.html
 
Last edited by a moderator:
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bump.

I don't want to believe that nobody has even an opinion on this!
 

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