The effect of superstructural ordering on the properties of high-temperature oxide superconductor systems |
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| Authors: | N V Anshukova A I Golovashkin L I Ivanova A P Rusakov |
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| Institution: | (1) Lebedev Institute of Physics, Russian Academy of Sciences, Moscow, 119991, Russia;(2) Moscow Institute of Steel and Alloys, Moscow, 117936, Russia |
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| Abstract: | The effect of superstructural ordering in the oxygen sublattice (in addition to the influence of the antiferromagnetic interaction of copper ions) on the electron and phonon characteristics of oxide high-temperature superconductor (HTSC) systems has been studied. Taking into account this ordering effect, it is possible to explain a wide range of experimental data, including doping-induced changes in shape of the Fermi surface, features of the phonon spectra, the existence of stripes, the presence of a pseudogap and its coexistence with the superconducting gap, and some peculiarities in the phase diagrams of HTSCs. |
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