Model for superconductivity in optimally doped electron cuprates

The very anomalous normal state properties and superconductivity of electron-doped supercon-ducting cuprates with the T* structure are discussed. The literature values of high mobilities for electrons and holes are explained by the electrons and holes existing in different layers. The...

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Veröffentlicht in:Физика низких температур
Datum:2001
Hauptverfasser: Geballe, T.H., Moyzhes, B.Y.
Format: Artikel
Sprache:English
Veröffentlicht: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2001
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Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/129006
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Model for superconductivity in optimally doped electron cuprates / T.H. Geballe B.Y. Moyzhes // Физика низких температур. — 2001. — Т. 27, № 9-10. — С. 1053-1055. — Бібліогр.: 18 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Zusammenfassung:The very anomalous normal state properties and superconductivity of electron-doped supercon-ducting cuprates with the T* structure are discussed. The literature values of high mobilities for electrons and holes are explained by the electrons and holes existing in different layers. The annealing procedures necessary for superconductivity produce oxygen-vacancy negative-U pairing centers. The relative insensitivity of Tc to the annealing condition is attributed to stabilization of the chemical potential near the middle of the narrow oxygen band formed by oxygen vacancies where the electronic entropy is large.
ISSN:0132-6414