High-Tc superconductor near the S-I transition

T. Kasai, H. Nakajima, T. Fujii, I. Terasaki, T. Watanabe, H. Shibata, Azusa Matsuda

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    We report on the density of states measurements of Bi2212 (Bi2+xSrxCaCu2O8+δ) near the superconductivity-insulator transition using a low temperature scanning tunneling microscope. We prepared highly underdoped Bi rich Bi2212 single crystals (Tc ∼ 32 K). The energy gap distribution did not provide an energy scale proportional to Tc. Averaged tunnel spectra with various doping levels were scaled into a single line if energy was normalized by their respective gap values. This indicated there was no crossover energy, which separates a pseudogap and a superconducting gap.

    Original languageEnglish
    Pages (from-to)1016-1019
    Number of pages4
    JournalPhysica C: Superconductivity and its Applications
    Volume469
    Issue number15-20
    DOIs
    Publication statusPublished - 2009 Oct 15

    Fingerprint

    Superconductivity
    Superconducting materials
    Tunnels
    Energy gap
    Microscopes
    Doping (additives)
    Single crystals
    Scanning
    Temperature
    tunnels
    energy
    crossovers
    superconductivity
    microscopes
    insulators
    scanning
    single crystals

    Keywords

    • Bi2212
    • STM
    • Superconductor
    • Underdoped

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electrical and Electronic Engineering
    • Energy Engineering and Power Technology
    • Electronic, Optical and Magnetic Materials

    Cite this

    Kasai, T., Nakajima, H., Fujii, T., Terasaki, I., Watanabe, T., Shibata, H., & Matsuda, A. (2009). High-Tc superconductor near the S-I transition. Physica C: Superconductivity and its Applications, 469(15-20), 1016-1019. https://doi.org/10.1016/j.physc.2009.05.179

    High-Tc superconductor near the S-I transition. / Kasai, T.; Nakajima, H.; Fujii, T.; Terasaki, I.; Watanabe, T.; Shibata, H.; Matsuda, Azusa.

    In: Physica C: Superconductivity and its Applications, Vol. 469, No. 15-20, 15.10.2009, p. 1016-1019.

    Research output: Contribution to journalArticle

    Kasai, T, Nakajima, H, Fujii, T, Terasaki, I, Watanabe, T, Shibata, H & Matsuda, A 2009, 'High-Tc superconductor near the S-I transition', Physica C: Superconductivity and its Applications, vol. 469, no. 15-20, pp. 1016-1019. https://doi.org/10.1016/j.physc.2009.05.179
    Kasai T, Nakajima H, Fujii T, Terasaki I, Watanabe T, Shibata H et al. High-Tc superconductor near the S-I transition. Physica C: Superconductivity and its Applications. 2009 Oct 15;469(15-20):1016-1019. https://doi.org/10.1016/j.physc.2009.05.179
    Kasai, T. ; Nakajima, H. ; Fujii, T. ; Terasaki, I. ; Watanabe, T. ; Shibata, H. ; Matsuda, Azusa. / High-Tc superconductor near the S-I transition. In: Physica C: Superconductivity and its Applications. 2009 ; Vol. 469, No. 15-20. pp. 1016-1019.
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