Scanning tunneling spectroscopy of the Abrikosov flux lattice from the clean toward the dirty limit

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

    Research output: Contribution to journalArticle

    Abstract

    Using a low-temperature scanning tunneling microscope, we have investigated the Abrikosov vortex lattice and its electronic structure on 2H-Nb1-xTaxSe2 single crystals for a range of Ta substitutions from x = 0.00 to x = 0.20 and with the magnetic field perpendicular to the basal plane. The material properties and in particular the electronic mean free path of 2H-Nb1-xTaxSe2 can be modified in a systematic manner by varying the Ta concentration. For all Ta substitutions considered, we show that the vortex lattice is aligned with the underlying atomic lattice. We find that the zero-bias conductance peak observed in the vortex core is strongly reduced both in intensity and spatial extent as x increases to 0.15, and vanishes when the Ta concentration reaches x = 0.20. These results show for the first time the progressive destruction of the vortex core conductance peak with increasing disorder in a type-II superconductor.

    Original languageEnglish (US)
    Pages (from-to)699-704
    Number of pages6
    JournalUltramicroscopy
    Volume42-44
    Issue numberPART 1
    DOIs
    StatePublished - 1992

    Fingerprint

    Vortex flow
    Spectroscopy
    vortices
    Fluxes
    Scanning
    scanning
    spectroscopy
    Substitution reactions
    substitutes
    mean free path
    Superconducting materials
    destruction
    Electronic structure
    Materials properties
    Microscopes
    microscopes
    Single crystals
    disorders
    Magnetic fields
    electronic structure

    ASJC Scopus subject areas

    • Materials Science(all)
    • Instrumentation

    Cite this

    Scanning tunneling spectroscopy of the Abrikosov flux lattice from the clean toward the dirty limit. / Renner, Ch; Kent, A. D.; Niedermann, Ph; Fischer, [No Value]; Lévy, F.

    In: Ultramicroscopy, Vol. 42-44, No. PART 1, 1992, p. 699-704.

    Research output: Contribution to journalArticle

    Renner, C, Kent, AD, Niedermann, P, Fischer, NV & Lévy, F 1992, 'Scanning tunneling spectroscopy of the Abrikosov flux lattice from the clean toward the dirty limit', Ultramicroscopy, vol. 42-44, no. PART 1, pp. 699-704. https://doi.org/10.1016/0304-3991(92)90345-K
    Renner, Ch ; Kent, A. D. ; Niedermann, Ph ; Fischer, [No Value] ; Lévy, F. / Scanning tunneling spectroscopy of the Abrikosov flux lattice from the clean toward the dirty limit. In: Ultramicroscopy. 1992 ; Vol. 42-44, No. PART 1. pp. 699-704.
    @article{f57444f597d245db8e7779a682f73508,
    title = "Scanning tunneling spectroscopy of the Abrikosov flux lattice from the clean toward the dirty limit",
    abstract = "Using a low-temperature scanning tunneling microscope, we have investigated the Abrikosov vortex lattice and its electronic structure on 2H-Nb1-xTaxSe2 single crystals for a range of Ta substitutions from x = 0.00 to x = 0.20 and with the magnetic field perpendicular to the basal plane. The material properties and in particular the electronic mean free path of 2H-Nb1-xTaxSe2 can be modified in a systematic manner by varying the Ta concentration. For all Ta substitutions considered, we show that the vortex lattice is aligned with the underlying atomic lattice. We find that the zero-bias conductance peak observed in the vortex core is strongly reduced both in intensity and spatial extent as x increases to 0.15, and vanishes when the Ta concentration reaches x = 0.20. These results show for the first time the progressive destruction of the vortex core conductance peak with increasing disorder in a type-II superconductor.",
    author = "Ch Renner and Kent, {A. D.} and Ph Niedermann and Fischer, {[No Value]} and F. L{\'e}vy",
    year = "1992",
    doi = "10.1016/0304-3991(92)90345-K",
    language = "English (US)",
    volume = "42-44",
    pages = "699--704",
    journal = "Ultramicroscopy",
    issn = "0304-3991",
    publisher = "Elsevier",
    number = "PART 1",

    }

    TY - JOUR

    T1 - Scanning tunneling spectroscopy of the Abrikosov flux lattice from the clean toward the dirty limit

    AU - Renner, Ch

    AU - Kent, A. D.

    AU - Niedermann, Ph

    AU - Fischer, [No Value]

    AU - Lévy, F.

    PY - 1992

    Y1 - 1992

    N2 - Using a low-temperature scanning tunneling microscope, we have investigated the Abrikosov vortex lattice and its electronic structure on 2H-Nb1-xTaxSe2 single crystals for a range of Ta substitutions from x = 0.00 to x = 0.20 and with the magnetic field perpendicular to the basal plane. The material properties and in particular the electronic mean free path of 2H-Nb1-xTaxSe2 can be modified in a systematic manner by varying the Ta concentration. For all Ta substitutions considered, we show that the vortex lattice is aligned with the underlying atomic lattice. We find that the zero-bias conductance peak observed in the vortex core is strongly reduced both in intensity and spatial extent as x increases to 0.15, and vanishes when the Ta concentration reaches x = 0.20. These results show for the first time the progressive destruction of the vortex core conductance peak with increasing disorder in a type-II superconductor.

    AB - Using a low-temperature scanning tunneling microscope, we have investigated the Abrikosov vortex lattice and its electronic structure on 2H-Nb1-xTaxSe2 single crystals for a range of Ta substitutions from x = 0.00 to x = 0.20 and with the magnetic field perpendicular to the basal plane. The material properties and in particular the electronic mean free path of 2H-Nb1-xTaxSe2 can be modified in a systematic manner by varying the Ta concentration. For all Ta substitutions considered, we show that the vortex lattice is aligned with the underlying atomic lattice. We find that the zero-bias conductance peak observed in the vortex core is strongly reduced both in intensity and spatial extent as x increases to 0.15, and vanishes when the Ta concentration reaches x = 0.20. These results show for the first time the progressive destruction of the vortex core conductance peak with increasing disorder in a type-II superconductor.

    UR - http://www.scopus.com/inward/record.url?scp=0026898395&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0026898395&partnerID=8YFLogxK

    U2 - 10.1016/0304-3991(92)90345-K

    DO - 10.1016/0304-3991(92)90345-K

    M3 - Article

    VL - 42-44

    SP - 699

    EP - 704

    JO - Ultramicroscopy

    JF - Ultramicroscopy

    SN - 0304-3991

    IS - PART 1

    ER -