Construction of a low-temperature gun and high-resolution field emission spectra from a Nb superconductor

C. Oshima, H. Fujii, T. Yamashita, S. Uchiyama, M. Yamada, K. Nagaoka, T. Sakurai

    Research output: Contribution to journalConference articlepeer-review

    2 Citations (Scopus)

    Abstract

    To investigate the fine structures in high-resolution field electron emission (FE) spectra from superconductors, we have constructed new apparatuses including a low-temperature FE gun, which can be operated at about 2.2 K. The FE patterns have been observed with an optical-fiber measuring system and the electrons emitted in the direction of the tip axis are analyzed with the resolution of approximately 1 meV. By using this experimental apparatus, we have observed a sharp peak at the Fermi level in FE spectra from a niobium superconducting emitter.

    Original languageEnglish
    Pages (from-to)143-147
    Number of pages5
    JournalApplied Surface Science
    Volume146
    Issue number1
    DOIs
    Publication statusPublished - 1999 May
    EventProceedings of the 1998 2nd International Vacuum Electron Sources Conference, IVESC-98 - Tsukuba, Jpn
    Duration: 1998 Jul 71998 Jul 10

    ASJC Scopus subject areas

    • Chemistry(all)
    • Condensed Matter Physics
    • Physics and Astronomy(all)
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films

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