Zero Resistivity in superconductors

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SUMMARY

Zero resistivity in superconductors occurs when the material is cooled below its critical temperature (T_c), allowing currents to flow indefinitely without resistance. This phenomenon is typically achieved using liquid helium or nitrogen. Notable resources for further understanding include a detailed explanation by Nobel laureate Leggett and the article "Infinite conductivity of ordinary and gapless superconductors" by Brun Hansen, published in Physica, Vol 39, p. 271-292 (1968).

PREREQUISITES
  • Understanding of superconductivity and its principles
  • Knowledge of critical temperature (T_c) in materials
  • Familiarity with cryogenic cooling methods, specifically liquid helium and nitrogen
  • Basic physics concepts related to electrical resistance
NEXT STEPS
  • Research the properties of superconductors and their applications in technology
  • Study the cooling techniques used to achieve superconductivity, focusing on liquid helium and nitrogen
  • Explore the implications of zero resistivity in superconducting materials for electrical engineering
  • Read the article "Infinite conductivity of ordinary and gapless superconductors" for in-depth theoretical insights
USEFUL FOR

Physicists, electrical engineers, materials scientists, and anyone interested in the principles and applications of superconductivity.

roshan2004
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What is the meaning of zero resistivity in superconductors? I mean, what's the cause of zero resistivity in superconductors?
 
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There is no resistance, so currents will flow indefinitely. The cause is lowering the superconductor below its critical temperature (T_c). Usually liquid helium or nitrogen is used to cool a superconductor below T_c.
 


Title should be "superconconductor", not "semi-".
 
Title has been changed.

Zz.
 
A nice explanation by nobel laureate Leggett can be found here:
http://online.physics.uiuc.edu/courses/phys598sc/fall08/L14.pdf
Very readable is also the article by Brun Hansen, "Infinite conductivity of ordinary and gapless superconductors", Physica, Vol 39, p. 271-292, (1968)
 
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