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1995

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May

  

Reviews of topical problems


Phase separation in high-temperature superconductors and related magnetic systems


Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow, Russian Federation

A review is given of theoretical and experimental data on spontaneous phase separation in nonsuperconducting degenerate magnetic semiconductors and related cuprate high-temperature superconductors. The following phenomena are considered: (1) The electronic phase separation occuring at frozen impurity positions as a result of charge carrier concentration in regions with a changed magnetic state; (2) impuriry (chemical) phase separation when a nonuniform impurity distribution over a crystal is driven simultaneously by interaction between impurity atoms and by their tendency to concentrate inside regions with a changed magnetic ordering.

Text can be downloaded in Russian. English translation is available on IOP Science.
PACS: 74.72.−h, 74.90.+n, 72.20.Dp, 75.50.Pp (all)
DOI: 10.1070/PU1995v038n05ABEH000085
URL: https://ufn.ru/en/articles/1995/5/b/
Citation: Nagaev E L "Phase separation in high-temperature superconductors and related magnetic systems" Phys. Usp. 38 497–520 (1995)
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Оригинал: Нагаев Э Л «Разделение фаз в высокотемпературных сверхпроводниках и родственных им магнитных материалах» УФН 165 529–554 (1995); DOI: 10.3367/UFNr.0165.199505b.0529

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