Pressure-dependent magnetization and magnetoresistivity studies on tetragonal FeS (mackinawite): Revealing its intrinsic metallic character

S. J. Denholme, H. Okazaki, S. Demura, K. Deguchi, M. Fujioka, T. Yamaguchi, H. Takeya, M. Elmassalami, H. Fujiwara, T. Wakita, T. Yokoya, Y. Takano

    研究成果: Article査読

    15 被引用数 (Scopus)

    抄録

    The transport and magnetic properties of the tetragonal Fe1+δS were investigated using magnetoresistivity and magnetization within 2 ≤ T ≤ 300 K, H ≤ 70 kOe and P ≤ 3.0 GPa. In addition, room-temperature x-ray diffraction and photoelectron spectroscopy were also applied. In contrast to previously reported nonmetallic character, Fe1+δS is intrinsically metallic but due to a presence of a weak localization such metallic character is not exhibited below room temperature. An applied pressure reduces strongly this additional resistive contribution and as such enhances the temperature range of the metallic character which, for ∼ 3 GPa, is evident down to 75 K. The absence of superconductivity as well as the mechanism behind the weak localization will be discussed.

    本文言語English
    論文番号055007
    ジャーナルScience and Technology of Advanced Materials
    15
    5
    DOI
    出版ステータスPublished - 2014 10 1

    ASJC Scopus subject areas

    • 材料科学(全般)

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