Model for the magnetic phases observed at low temperatures in reduced YBa2Cu3O6+x materials with Al substitution for Cu or rare earth ions for Ba

N.H. Andersen, G. Uimin

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    From a classical statistical model it is shown that the low temperature antiferromagnetic AFII phase, observed in reduced YBa2Cu3O6+x type materials with Al in the CuOx basal plane or rare earth on the Ba site, results from an effective ferromagnetic coupling between adjacent CuO2 double layers mediated by polarization of free spins in the basal plane. At higher temperature the ferromagnetic coupling becomes ineffective and the spin structure transforms via intermediate Turn Angle phases into the high temperature AFI phase.
    Original languageEnglish
    JournalPhysica C
    Volume282-287
    Issue numberPart 3
    Pages (from-to)1289-1290
    ISSN0921-4534
    DOIs
    Publication statusPublished - 1997
    Event5th International Conference on Materials and Mechanisms of Superconductivity, High Temperature Superconductors - Beijing, China
    Duration: 28 Feb 19974 Mar 1997
    Conference number: 5
    http://www.saxo.com/dk/materials-and-mechanisms-of-superconductivity-high-temperature-superconductors_yu-sheng-he_hardback_9780444828354

    Conference

    Conference5th International Conference on Materials and Mechanisms of Superconductivity, High Temperature Superconductors
    Number5
    CountryChina
    CityBeijing
    Period28/02/199704/03/1997
    Internet address

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