Correlation between vortex distribution and electronic inhomogeneity in bi2sr2cacu2o8+δ as probed by STM/STS

Noritaka Fukuo, Hideki Mashima, Go Kinodar, Taro Hitosugi, Toshihiro Shimada, Keisuke Shimizu, Jun Ichi Shimoyama, Kohji Kishio, Yuji Matsumoto, Tetsuya Hasegawa

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    In order to investigate the correlation between vortex distribution and inherent electronic inhomogeneity, we have performed scanning tunneling microscopy/spectroscopy (STM/STS) of optimally doped Bi2Sr 2CaCu2O8+δ single crystals at 4.3 K under 8 T. Vortices have been successfully visualized by mapping differential tunneling conductance at 12.5 meV, which was substantially enhanced around the vortex cores. The vortices tended to form an ordinary triangular lattice with a spacing of a0=1.07/B in a short range of ∼ a0, but the triangular correlation was almost missing in a longer scale. By comparing the vortex distribution pattern and gap map, we concluded that pseudogap regions predominantly pin down vortices.

    Original languageEnglish
    Title of host publicationLOW TEMPERATURE PHYSICS
    Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
    Pages797-798
    Number of pages2
    DOIs
    Publication statusPublished - 2006 Dec 1
    EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
    Duration: 2006 Aug 102006 Oct 17

    Publication series

    NameAIP Conference Proceedings
    Volume850
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Other

    OtherLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
    CountryUnited States
    CityOrlando, FL
    Period06/8/1006/10/17

    Keywords

    • Bi2212
    • Electronic inhomogeneity
    • STM/STS
    • Vortex pinning

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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  • Cite this

    Fukuo, N., Mashima, H., Kinodar, G., Hitosugi, T., Shimada, T., Shimizu, K., Shimoyama, J. I., Kishio, K., Matsumoto, Y., & Hasegawa, T. (2006). Correlation between vortex distribution and electronic inhomogeneity in bi2sr2cacu2o8+δ as probed by STM/STS. In LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 (pp. 797-798). (AIP Conference Proceedings; Vol. 850). https://doi.org/10.1063/1.2354945