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| If electronic states exist in the superconducting/pseudo gap, why don't electrons staying on the "Fermi Level" at the node jump to those states in the gap to enjoy the energy benefit of the gap? This question has now found an answer by consideration of pairing instability, which is measured by the phonon number of the mediating lattice mode responsible for the pairing concerned. We have obtained a full picture of electron pairing pattern in Bi2212 system, from node to antinode, in which the magnitude of gap is a measure of relative instability of electron pairing at the gap location. Bogoliubov quasiparticles are explained as excitations by, and means for dissipating, the phonons concentrated to the winning mode(s) in mode competition among mediating lattice modes. Superconducting gap is identified as a kinked band section. Some of the depleted modes in the mode competition should be responsible to high-temperature superconductivity. |
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| Keywords:superconductivity physics; electron pairing; Bogoliubov quasiparticles |
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