Question:
The favourable condition for superconducting state of a matter is
The favourable condition for superconducting state of a matter is
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Superconductivity = Cooper Pairs = Electron + Phonon + Electron interaction.
Updated On: Jul 4, 2026
- A weak electron-phonon interaction
- A strong electron-phonon interaction
- A strong phonon-phonon interaction
- A weak phonon-phonon interaction
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The Correct Option is B
Solution and Explanation
Step 1: Concept
Superconductivity is explained by the BCS theory, which involves the formation of Cooper pairs.
Step 2: Meaning
Cooper pairs are pairs of electrons that are bound together despite their mutual repulsion.
Step 3: Analysis
This binding is mediated by lattice vibrations, known as phonons. A strong interaction between electrons and phonons is necessary to create this attractive force.
Step 4: Conclusion
Thus, a strong electron-phonon interaction is the key favorable condition for the superconducting state. Final Answer: (B)
Superconductivity is explained by the BCS theory, which involves the formation of Cooper pairs.
Step 2: Meaning
Cooper pairs are pairs of electrons that are bound together despite their mutual repulsion.
Step 3: Analysis
This binding is mediated by lattice vibrations, known as phonons. A strong interaction between electrons and phonons is necessary to create this attractive force.
Step 4: Conclusion
Thus, a strong electron-phonon interaction is the key favorable condition for the superconducting state. Final Answer: (B)
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