Spin dynamics and the Pauli exclusion principle

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SUMMARY

The discussion centers on the relationship between spin dynamics and the Pauli exclusion principle in the context of high-temperature superconductivity. It is established that two quasifree electrons pair with opposing spins—one spin up and one spin down—resulting in zero spin angular momentum. This pairing leads to the absence of magnetic fields in type I superconductors, aligning with the notion that Cooper pairs possess zero spin. The implications of these properties are crucial for understanding the magnetic characteristics of superconductors.

PREREQUISITES
  • Understanding of high-temperature superconductivity principles
  • Familiarity with the Pauli exclusion principle
  • Knowledge of electron spin and angular momentum
  • Basic concepts of Cooper pairs in superconductivity
NEXT STEPS
  • Research the mechanisms of high-temperature superconductivity
  • Explore the implications of the Pauli exclusion principle on electron pairing
  • Study the properties of type I superconductors and their magnetic behavior
  • Investigate the role of Cooper pairs in superconducting phenomena
USEFUL FOR

Physicists, materials scientists, and researchers focusing on superconductivity and quantum mechanics will benefit from this discussion.

atomiclaser
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TL;DR
How does pauli exclusion principle affect the superconductivity?
For high temperature superconductivity, people usually say two quasifree electrons are pairing, one is spin up and the other one is spin down.
So, if that is the case, each two electrons will have zero spin angular momentum. Since the superconductivity is the magnetic properties and spin is the microessens of magnet, so if electrons are pairing, there should be no magnetic and how superconductivity works?
 
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No magnetic field permeates into super conductor (of the first kind) . It seems harmonious to the fact as you mentioned that Couper pair has zero spin.
 

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