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VOLUME 76 | ISSUE 11 | PAGE 774
Possible universal cause of high-Tc superconductivity in different metals
PACS: 71.27.+a, 74.20.Fg, 74.72.-h
Using the theory of the high temperature superconductivity based on the idea of the fermion condensation quantum phase transition (FCQPT), we show that neither the d-wave pairing symmetry, nor the pseudogap phenomenon, nor the presence of the Cu-O2 planes are of decisive importance for the existence of the high-Tc superconductivity. We analyze recent experimental data on this type of superconductivity in different materials and show that these facts can be understood within the theory of superconductivity based on the FCQPT. The latter can be considered as a universal cause of the high-Tc superconductivity. The main features of a room-temperature superconductor are discussed.