Tunnel spectra for Al/Al-oxide/Ni80Fe20 junctions under the superconducting transition temperature of Al films

M. Oogane, T. Daibou, H. Kubota, Y. Ando, T. Miyazaki

研究成果: Article査読

抄録

Superconductor/insulator/metal (S/I/M) tunnel junction can be used as an indicator of junction quality. For S/I/M junction, zero-bias conductance (ZBC) should be close to zero. However, leakage conductance increases the ZBC values. We measured the ZBC values of the Al/Al-oxide/Ni80Fe20 junctions prepared with various oxidation processes. For strong plasma oxidation (high applied power), most of the junctions showed low ZBC. However, ZBC increased with decreasing power of oxidation. It is considered that oxidation proceeds homogeneously for strong oxidation, compared with weak oxidation process.

本文言語English
ページ(範囲)e1515-e1516
ジャーナルJournal of Magnetism and Magnetic Materials
272-276
SUPPL. 1
DOI
出版ステータスPublished - 2004 5

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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