A study of the properties of the YBa Cu 0 high temperature superconductorm

K. Naukkarinen, K. Arlauskas, Leif Grönberg, Risto Laiho, Jukka Vanhatalo

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    High temperature,T c>90 K, superconductivity in YBa2Cu3O7−δ samples was observed from resistivity and magnetic susceptibility measurements. The zero-field-cooled susceptibility of the material was 60 to 100% of the ideal diamagnetic value depending on sample preparation. Structure identification by X-ray diffraction at both 293 and 89 K exhibited the same orthorhombic structure. Scanning tunnelling microscope investigations of the sample surface revealed steep step structure with 10×10 nm2 size crystallites and 5 to 100 nm high terraces. Temperature cycling between 77 and 293 K sometimes led to the appearance of white barium lumps on the surface and in the bulk of the sample causing the transition to the low resistance state at 90 K to disappear.
    Original languageEnglish
    Pages (from-to)1203-1206
    JournalJournal of Materials Science
    Volume24
    Issue number4
    DOIs
    Publication statusPublished - 1989
    MoE publication typeA1 Journal article-refereed

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    Barium
    Superconductivity
    Magnetic susceptibility
    Crystallites
    Microscopes
    Scanning
    X ray diffraction
    Temperature
    barium copper yttrium oxide

    Cite this

    Naukkarinen, K. ; Arlauskas, K. ; Grönberg, Leif ; Laiho, Risto ; Vanhatalo, Jukka. / A study of the properties of the YBa Cu 0 high temperature superconductorm. In: Journal of Materials Science. 1989 ; Vol. 24, No. 4. pp. 1203-1206.
    @article{da48989ee0f54e53823819c3f3c4dd16,
    title = "A study of the properties of the YBa Cu 0 high temperature superconductorm",
    abstract = "High temperature,T c>90 K, superconductivity in YBa2Cu3O7−δ samples was observed from resistivity and magnetic susceptibility measurements. The zero-field-cooled susceptibility of the material was 60 to 100{\%} of the ideal diamagnetic value depending on sample preparation. Structure identification by X-ray diffraction at both 293 and 89 K exhibited the same orthorhombic structure. Scanning tunnelling microscope investigations of the sample surface revealed steep step structure with 10×10 nm2 size crystallites and 5 to 100 nm high terraces. Temperature cycling between 77 and 293 K sometimes led to the appearance of white barium lumps on the surface and in the bulk of the sample causing the transition to the low resistance state at 90 K to disappear.",
    author = "K. Naukkarinen and K. Arlauskas and Leif Gr{\"o}nberg and Risto Laiho and Jukka Vanhatalo",
    year = "1989",
    doi = "10.1007/BF02397048",
    language = "English",
    volume = "24",
    pages = "1203--1206",
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    A study of the properties of the YBa Cu 0 high temperature superconductorm. / Naukkarinen, K.; Arlauskas, K.; Grönberg, Leif; Laiho, Risto; Vanhatalo, Jukka.

    In: Journal of Materials Science, Vol. 24, No. 4, 1989, p. 1203-1206.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - A study of the properties of the YBa Cu 0 high temperature superconductorm

    AU - Naukkarinen, K.

    AU - Arlauskas, K.

    AU - Grönberg, Leif

    AU - Laiho, Risto

    AU - Vanhatalo, Jukka

    PY - 1989

    Y1 - 1989

    N2 - High temperature,T c>90 K, superconductivity in YBa2Cu3O7−δ samples was observed from resistivity and magnetic susceptibility measurements. The zero-field-cooled susceptibility of the material was 60 to 100% of the ideal diamagnetic value depending on sample preparation. Structure identification by X-ray diffraction at both 293 and 89 K exhibited the same orthorhombic structure. Scanning tunnelling microscope investigations of the sample surface revealed steep step structure with 10×10 nm2 size crystallites and 5 to 100 nm high terraces. Temperature cycling between 77 and 293 K sometimes led to the appearance of white barium lumps on the surface and in the bulk of the sample causing the transition to the low resistance state at 90 K to disappear.

    AB - High temperature,T c>90 K, superconductivity in YBa2Cu3O7−δ samples was observed from resistivity and magnetic susceptibility measurements. The zero-field-cooled susceptibility of the material was 60 to 100% of the ideal diamagnetic value depending on sample preparation. Structure identification by X-ray diffraction at both 293 and 89 K exhibited the same orthorhombic structure. Scanning tunnelling microscope investigations of the sample surface revealed steep step structure with 10×10 nm2 size crystallites and 5 to 100 nm high terraces. Temperature cycling between 77 and 293 K sometimes led to the appearance of white barium lumps on the surface and in the bulk of the sample causing the transition to the low resistance state at 90 K to disappear.

    U2 - 10.1007/BF02397048

    DO - 10.1007/BF02397048

    M3 - Article

    VL - 24

    SP - 1203

    EP - 1206

    JO - Journal of Materials Science

    JF - Journal of Materials Science

    SN - 0022-2461

    IS - 4

    ER -