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What is the highest Tc for phonon-mediated superconductivity? |
| CAO Tian-de, GUO Sheng-li, WANG Tie-bang |
| Department of Physics, Nanjing University of Information Science & Technology, Nanjing 210044, China; |
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Abstract We suggest that the high-temperature superconductivity can be attributed to the director-roles of the van Hove singularity between an electron-electron interaction and an electron-phonon interaction. The difference between the critical temperature and the pairing temperature is presented, and the Fermi arc, the d-wave symmetry and the poor conductivity, etc., are discussed. In particular, the non-s-wave symmetry is predicted to have the highest Tc for superconductors.
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Issue Date: 05 March 2007
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