What Causes the Gradual Increase in Conductivity in Type 2 Superconductors?

AI Thread Summary
Copper-oxygen planes, crucial for superconductivity, are separated by insulating layers that limit atomic orbital overlap, yet electrons can tunnel through these layers, impacting superconductivity in ways that remain unclear. Type 1 superconductors exhibit a high density of Cooper pairs and a rapid increase in conductivity, while Type 2 superconductors transition gradually from normal to superconducting states. The enhanced conductivity in Type 2 superconductors may result from electron movement creating "groups" of atoms in the lattice, facilitating further electron movement and group formation as temperature decreases. This phenomenon could also explain the behavior observed in the insulating layers between copper-oxygen planes. Understanding these mechanisms is essential for advancing superconductivity research.
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The copper-oxygen planes that
are believed to be responsible for superconductivity are separated by
many insulating layers layers. So there might not be much overlap between
atomic orbitals between separated Cu-O planes. However, electrons can
still tunnel through the insulating layers. This tunneling is believed
to affect superconductivity, but it is not well understood how.



In type 1 superconductors there are lots of cooper pairs and there is a rapid change in conductivity.Type 2 superconductors show a gradual change from normal to super conductivity .Perhaps type 2 superconductors conduct increasingly better because electron movement through a lattice causes the formation of "groups" of atoms in the lattice which then cause further electron movements in such a way as to increase the formation of yet more groups and so on, as the temperature decreases
 
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This could be what is happening in the insulating layers between the copper-oxygen planes, and this could be why superconductivity increases as the temperature decreases.
 
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