CPP transport properties of polycrystalline Fe 3O 4 thin films sputtered on Cu underlayers

F. Qin, Y. Nozaki, K. Matsuyama

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Transport properties of sputtered Fe3 O4 thin films have been studied with the current perpendicular to plane (CPP) configuration. Fabricated polycrystalline Fe3 O4 films exhibit superior CPP conductivity of 12 k Ω-1 · m-1. In addition to the Verwey transition (VT), observed at 114 K, another type of drastic conductivity change [field induced transition (FT)] was observed at lower temperature (T<70 K) and higher bias voltage (Vb ≥0.18 V) regime. The conductivity change at FT is discontinuous and several orders in magnitude. The transition temperature for FT presents considerable Vb dependence, contrarily no distinguished dependence for VT.

本文言語English
論文番号10C315
ジャーナルJournal of Applied Physics
97
10
DOI
出版ステータスPublished - 2005 5 15
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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