On the structural properties and superconductivity of room-temperature chemically oxidized La2-xBaxCuO4+y (0<=x<=0.15)

C. Rial, E. Moran, M.A. Alario-Franco, U. Amador, N.H. Andersen

    Research output: Contribution to journalJournal articleResearch

    Abstract

    The insertion of oxygen within the structure of La2-xBaxCuO4+y (x less than or equal to 0.15), by means of room-temperature chemical oxidation, modifies both the physical and the structural features of these materials, Concerning the superconducting properties, the extra oxygen gives rise to an increase of T-c. Regarding the crystal structure, the phase transitions HTT (F4/mmm) double left right arrow LTO(Bmab) double left right arrow LTT(P4(2)/ncm), that unoxidized materials undergo as the temperature decreases, seem to be hindered by the presence of the interstitial oxygen. Similarities and differences concerning the modifications induced by this oxidation process in the present series of La2-xBaxCuO4+y compounds and in equivalent La2-xSrxCuO4+y materials are discussed.
    Original languageEnglish
    JournalPhysica C: Superconductivity and its Applications
    Volume270
    Issue number1-2
    Pages (from-to)51-67
    ISSN0921-4534
    DOIs
    Publication statusPublished - 1996

    Fingerprint Dive into the research topics of 'On the structural properties and superconductivity of room-temperature chemically oxidized La<sub>2</sub><sub>-</sub><sub>x</sub>Ba<sub>x</sub>CuO<sub>4</sub><sub>+</sub><sub>y</sub> (0<=x<=0.15)'. Together they form a unique fingerprint.

    Cite this