A unified theory of superconductivity
| dc.creator | Huang, Xiuqing | |
| dc.date | 2008-04-10 | |
| dc.date | 2008-09-22 | |
| dc.date.accessioned | 2026-07-07T10:03:54Z | |
| dc.date.available | 2026-07-07T10:03:54Z | |
| dc.description | In this paper, we study the reliability of BCS theory as a scientific explanation of the mystery of superconductivity. It is shown clearly that the phonon-mediated BCS theory is fundamentally incorrect. Two kinds of glues, pairing (pseudogap) glue and superconducting glue, are suggested based on a real space Coulomb confinement effect. The scenarios provide a unified explanation of the pairing symmetry, pseudogap and superconducting states, charge stripe order, spin density wave (SDW), checkerboard-type charge-ordered phase, magic doping fractions and vortex structures in conventional and unconventional (the high-Tc cuprates and MgB2) superconductors. The theory agrees with the existence of a pseudogap in high-temperature superconductors, while no pseudogap feature could be observed in MgB2 and most of the conventional superconductors. Our results indicate that the superconducting phase can coexist with a inclined hexagonal vortex lattice in pure MgB2 single crystal with a charge carrier density ps=1.49*10^{22}/cm^{3}. Finally, the physical reasons why the good conductors (for example, Ag, Au, and Cu) and the overdoped high-Tc superconductors are non-superconducting are also explored. | |
| dc.description | More discussions about the reliability of BCS theory are added. These results show clearly that the phonon-mediated BCS theory is fundamentally incorrect | |
| dc.identifier | https://arxiv.org/abs/0804.1615 | |
| dc.identifier | http://arxiv.org/abs/0804.1615 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/169467 | |
| dc.subject | General Physics | |
| dc.title | A unified theory of superconductivity | |
| dc.type | text |