Reviews of topical problems

Phase diagram of La2-xMxCuO4 as the key to understanding the nature of high-Tc superconductors

Lebedev Physical Institute, Russian Academy of Sciences, Leninsky prosp. 53, Moscow, 119991, Russian Federation

Results of high-Tc superconductivity studies are analyzed using the authors’ model, which assumes that the interaction of electrons with two-site negative-U centers (due to charged dopant localization near impurity ions) is responsible for many anomalous properties, and indeed the very superconductivity, of high-T c superconductors. It is shown that the basic properties of high-Tc superconductors and the details of the superconducting and magnetic phase diagrams ofLa2-xMxCuO4 (M=Ba, Sr) can be explained by this model.

Fulltext is available at IOP
PACS: 74.20.−z, 74.62.Dh, 74.72.−h (all)
DOI: 10.1070/PU2004v047n05ABEH001384
Citation: Mitsen K V, Ivanenko O M "Phase diagram of La2-xMxCuO4 as the key to understanding the nature of high-Tc superconductors" Phys. Usp. 47 493–510 (2004)
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Оригинал: Мицен К В, Иваненко О М «Фазовая диаграмма La2-xMxCuO4 как ключ к пониманию природы ВТСП» УФН 174 545–563 (2004); DOI: 10.3367/UFNr.0174.200405c.0545

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