Enhancing Superconductivity with Linear Superconductors

In summary, the shape of a superconductor does not determine its maximum current carrying capacity. This is due to microscopic properties of the superconductor and not a bulk property. The maximum current is related to the critical magnetic field and the self-field generated by the current, which can cause Cooper pairs to break up. This is not a problem in superconducting cables, but in superconducting magnets, the total field is a combination of the generated field and the self field. Additionally, the motion of electron pairs in a linear superconductor could potentially be inertial, allowing for the preservation of Cooper pairs. However, this is not related to the Fermi energy and the maximum current cannot be evaded by using coils or changing the
  • #1
Relena
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For a super conductor there is a maximum current after which the energy of electrons will be higher than Fermi energy and no cooper pairs will exist .

Can this be evaded if we used linear superconductors rather than coils ?? thus, the motion of electron pairs could be inertial , And the cooper pairs wouldn't be destroyed.

Any Ideas?
 
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  • #2
Linear? Coil?

The shape of the superconductor is not directly related to do with the maximum current it can carry (known as Jc); the maximum Jc in a given configuration is ultimately due to microscopic properties of the superconductor and is not a bulk propery as such.
Also, you can't really talk about a Fermi energy in this context (I suspect you mean the superconducting gap, but that is not the same thing as the Fermi energy). You can think of Jc as being determined by the critical magnetic field of the superconductor, it is the self-field generated by the current that is causing the Cooper pairs to break up.

(superconducting magnets the total field is of course due to the sum of the generated field+the self field; but this is not a problem in e.g. superconducting cables)
 
  • #3
The shape of the superconductor is not directly related to do with the maximum current it can carry (known as Jc); the maximum Jc in a given configuration is ultimately due to microscopic properties of the superconductor and is not a bulk propery as such.

That's true of course , I saw that I missed the point , since electrons will always collide with atoms and lose energy after JC is reached .

thanks for your
 

1. What is a linear superconductor?

A linear superconductor is a material that exhibits zero electrical resistance when subjected to a critical temperature and magnetic field.

2. How does a linear superconductor work?

Linear superconductors work by allowing electrons to flow through the material without any resistance when cooled below their critical temperature. This is due to the formation of Cooper pairs, which are pairs of electrons that behave as one unit.

3. What are the practical applications of linear superconductors?

Linear superconductors have various practical applications, such as in magnetic resonance imaging (MRI) machines, particle accelerators, and high-speed trains. They are also used in advanced electronic devices, such as superconducting quantum interference devices (SQUIDs).

4. How do linear superconductors differ from other types of superconductors?

Linear superconductors differ from other types of superconductors, such as conventional and high-temperature superconductors, in their unique properties and behavior. Unlike conventional superconductors, which require very low temperatures to exhibit superconductivity, linear superconductors can operate at higher temperatures. Additionally, they have a one-dimensional structure, unlike high-temperature superconductors, which have a two-dimensional or three-dimensional structure.

5. What are the current challenges in studying and utilizing linear superconductors?

Some of the challenges in studying and utilizing linear superconductors include finding materials that can exhibit superconductivity at higher temperatures, understanding the mechanisms behind their behavior, and developing practical applications that can take advantage of their unique properties. Additionally, the cost of producing and maintaining the extreme conditions required for superconductivity can be a barrier in some applications.

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