Superconducting instability?

In summary, the conversation discusses the concept of "Superconducting instability" and its meaning in the context of BCS phase transition in Fermi systems with attractive forces. The original question was vague and the topic was further clarified through the reference to the article "Bose Condensation in an Attractive Fermion Gas". The conclusion was that superconducting instability refers to the inability to form pairs above a critical temperature in a dense limit.
  • #1
HJ_original
3
0
Could anyone please explain what 'Superconducting instability' means?

If there are some good references to read, that would be really nice!
 
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  • #2
HJ_original said:
Could anyone please explain what 'Superconducting instability' means?

If there are some good references to read, that would be really nice!

This is very vague. You need to frame your question with the context that you want. Superconducting instability is used in many different situations.

Again, as stated in the PF Rules, you must provide as clear of a question as possible. If not, we will be rambling on for several posts just to figure out what exactly it is what you want.

Zz.
 
  • #3
I am sorry if my question was vague. I didn't know that Superconducting instability is used in many other situations.

I was reading the article 'Bose Condensation in an Attractive Fermion Gas'
http://www.springerlink.com/content/n200841124207n14/fulltext.pdf

and I got stuck with this word 'superconducting instability' at the 2nd line in the Introduction part. I googled it first, but couldn't easily find a good overall explanation for it.

So.. If I rephrase my question, I'd like to know what 'Superconducting instability' means in the context of BCS Phase transition in Fermi system, interacting with attractive forces.

HJ
 
  • #4
well,, now I see that 'Superconducting instability' just means that the formation of the pair cannot happen above the critical temperature in a dense limit..

Thanks anyway.

HJ
 

1. What is superconducting instability?

Superconducting instability is the point at which a superconductor transitions from a state of zero resistance to a state of finite resistance. This usually occurs at a critical temperature or critical magnetic field, depending on the type of superconductor.

2. How is superconducting instability measured?

Superconducting instability can be measured using various techniques, including electrical resistivity measurements, magnetic susceptibility measurements, and specific heat measurements. These techniques can determine the critical temperature and critical magnetic field at which superconducting instability occurs.

3. What causes superconducting instability?

Superconducting instability is caused by the breaking of Cooper pairs, which are pairs of electrons that are bound together at low temperatures in a superconductor. This can happen when the temperature or magnetic field reaches a critical point, and the energy required to maintain the Cooper pairs becomes too high.

4. What are the practical applications of understanding superconducting instability?

Understanding superconducting instability is crucial for the development of practical applications of superconductivity, such as in MRI machines, particle accelerators, and power transmission. By understanding the conditions that lead to superconducting instability, scientists can design more efficient and reliable superconducting materials and devices.

5. Can superconducting instability be controlled or prevented?

Superconducting instability cannot be completely prevented, as it is a natural phenomenon. However, it can be controlled to some extent by carefully selecting the materials and conditions in which superconductivity is achieved. Additionally, ongoing research is focused on finding ways to increase the critical temperature and critical magnetic field of superconductors, which would delay the onset of superconducting instability.

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