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Crossover from d–p pairing to p–p pairing in cuprate superconductors

✍ Scribed by T.D. Cao; S.L. Guo; C.Q. Li; G.S. Cheng

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
255 KB
Volume
402
Category
Article
ISSN
0921-4534

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✦ Synopsis

The crossover from d-p pairing to p-p pairing with increasing hole doping is suggested for high critical temperature superconductor when the electron-phonon interaction is added in the d-p model. The d-wave pairing symmetry, high critical temperature, and zero isotope index can arrive, if the d-p pairing is predominant for optimally hole-doped cuprates. With increasing hole doping, the p-p pairing becomes predominant, and higher isotope index could occur. The metal-insulator transition and two states of electrons are also analyzed after the doping-induced spectral weight transfer from Cu-O interaction was found.

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