Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit

Ch Renner, A. D. Kent, Ph Niedermann, [No Value] Fischer, F. Lévy

    Research output: Contribution to journalArticle

    Abstract

    The local density of states of a superconducting vortex core has been measured as a function of disorder in the alloy system Nb1-xTaxSe2 using a low-temperature scanning tunneling microscope. The peak observed in the zero-bias conductance at a vortex center is found to be very sensitive to disorder. As the mean free path is decreased by substitutional alloying the peak gradually disappears and for x=0.2 the density of states in the vortex center is found to be equal to that in the normal state. The vortex-core spectra hence may provide a sensitive measure of the quasiparticle scattering time.

    Original languageEnglish (US)
    Pages (from-to)1650-1652
    Number of pages3
    JournalPhysical Review Letters
    Volume67
    Issue number12
    DOIs
    StatePublished - 1991

    Fingerprint

    vortices
    scanning
    spectroscopy
    disorders
    mean free path
    alloying
    microscopes
    scattering

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Renner, C., Kent, A. D., Niedermann, P., Fischer, N. V., & Lévy, F. (1991). Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit. Physical Review Letters, 67(12), 1650-1652. https://doi.org/10.1103/PhysRevLett.67.1650

    Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit. / Renner, Ch; Kent, A. D.; Niedermann, Ph; Fischer, [No Value]; Lévy, F.

    In: Physical Review Letters, Vol. 67, No. 12, 1991, p. 1650-1652.

    Research output: Contribution to journalArticle

    Renner, C, Kent, AD, Niedermann, P, Fischer, NV & Lévy, F 1991, 'Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit', Physical Review Letters, vol. 67, no. 12, pp. 1650-1652. https://doi.org/10.1103/PhysRevLett.67.1650
    Renner, Ch ; Kent, A. D. ; Niedermann, Ph ; Fischer, [No Value] ; Lévy, F. / Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit. In: Physical Review Letters. 1991 ; Vol. 67, No. 12. pp. 1650-1652.
    @article{edf476f8d62b4a508722c1c1e153ee90,
    title = "Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit",
    abstract = "The local density of states of a superconducting vortex core has been measured as a function of disorder in the alloy system Nb1-xTaxSe2 using a low-temperature scanning tunneling microscope. The peak observed in the zero-bias conductance at a vortex center is found to be very sensitive to disorder. As the mean free path is decreased by substitutional alloying the peak gradually disappears and for x=0.2 the density of states in the vortex center is found to be equal to that in the normal state. The vortex-core spectra hence may provide a sensitive measure of the quasiparticle scattering time.",
    author = "Ch Renner and Kent, {A. D.} and Ph Niedermann and Fischer, {[No Value]} and F. L{\'e}vy",
    year = "1991",
    doi = "10.1103/PhysRevLett.67.1650",
    language = "English (US)",
    volume = "67",
    pages = "1650--1652",
    journal = "Physical Review Letters",
    issn = "0031-9007",
    publisher = "American Physical Society",
    number = "12",

    }

    TY - JOUR

    T1 - Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit

    AU - Renner, Ch

    AU - Kent, A. D.

    AU - Niedermann, Ph

    AU - Fischer, [No Value]

    AU - Lévy, F.

    PY - 1991

    Y1 - 1991

    N2 - The local density of states of a superconducting vortex core has been measured as a function of disorder in the alloy system Nb1-xTaxSe2 using a low-temperature scanning tunneling microscope. The peak observed in the zero-bias conductance at a vortex center is found to be very sensitive to disorder. As the mean free path is decreased by substitutional alloying the peak gradually disappears and for x=0.2 the density of states in the vortex center is found to be equal to that in the normal state. The vortex-core spectra hence may provide a sensitive measure of the quasiparticle scattering time.

    AB - The local density of states of a superconducting vortex core has been measured as a function of disorder in the alloy system Nb1-xTaxSe2 using a low-temperature scanning tunneling microscope. The peak observed in the zero-bias conductance at a vortex center is found to be very sensitive to disorder. As the mean free path is decreased by substitutional alloying the peak gradually disappears and for x=0.2 the density of states in the vortex center is found to be equal to that in the normal state. The vortex-core spectra hence may provide a sensitive measure of the quasiparticle scattering time.

    UR - http://www.scopus.com/inward/record.url?scp=4244122428&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=4244122428&partnerID=8YFLogxK

    U2 - 10.1103/PhysRevLett.67.1650

    DO - 10.1103/PhysRevLett.67.1650

    M3 - Article

    VL - 67

    SP - 1650

    EP - 1652

    JO - Physical Review Letters

    JF - Physical Review Letters

    SN - 0031-9007

    IS - 12

    ER -