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

*この研究の対応する著者

研究成果: Article査読

2 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)143-147
ページ数5
ジャーナルApplied Surface Science
146
1
DOI
出版ステータスPublished - 1999 5

ASJC Scopus subject areas

  • 物理化学および理論化学
  • 表面、皮膜および薄膜
  • 凝縮系物理学

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