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

doi:10.1088/1468-6996/15/5/055007

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: ジャーナルへの寄稿 › 記事 › 査読

16 被引用数 (Scopus)

抄録

The transport and magnetic properties of the tetragonal Fe_1+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, Fe_1+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	英語
論文番号	055007
ジャーナル	Science and Technology of Advanced Materials
巻	15
号	5
DOI	https://doi.org/10.1088/1468-6996/15/5/055007
出版ステータス	出版済み - 1 10月 2014
外部発表	はい

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10.1088/1468-6996/15/5/055007

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引用スタイル

Denholme, S. J., Okazaki, H., Demura, S., Deguchi, K., Fujioka, M., Yamaguchi, T., Takeya, H., Elmassalami, M., Fujiwara, H., Wakita, T., Yokoya, T., & Takano, Y. (2014). Pressure-dependent magnetization and magnetoresistivity studies on tetragonal FeS (mackinawite): Revealing its intrinsic metallic character. Science and Technology of Advanced Materials, 15(5), 記事 055007. https://doi.org/10.1088/1468-6996/15/5/055007

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abstract = "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.",

keywords = "Chalcogenides, Disordered solids, Localization effects, Pnictides",

author = "Denholme, {S. J.} and H. Okazaki and S. Demura and K. Deguchi and M. Fujioka and T. Yamaguchi and H. Takeya and M. Elmassalami and H. Fujiwara and T. Wakita and T. Yokoya and Y. Takano",

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Denholme, SJ, Okazaki, H, Demura, S, Deguchi, K, Fujioka, M, Yamaguchi, T, Takeya, H, Elmassalami, M, Fujiwara, H, Wakita, T, Yokoya, T & Takano, Y 2014, 'Pressure-dependent magnetization and magnetoresistivity studies on tetragonal FeS (mackinawite): Revealing its intrinsic metallic character', Science and Technology of Advanced Materials, vol. 15, no. 5, 055007. https://doi.org/10.1088/1468-6996/15/5/055007

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T1 - Pressure-dependent magnetization and magnetoresistivity studies on tetragonal FeS (mackinawite)

T2 - Revealing its intrinsic metallic character

AU - Denholme, S. J.

AU - Okazaki, H.

AU - Demura, S.

AU - Deguchi, K.

AU - Fujioka, M.

AU - Yamaguchi, T.

AU - Takeya, H.

AU - Elmassalami, M.

AU - Fujiwara, H.

AU - Wakita, T.

AU - Yokoya, T.

AU - Takano, Y.

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N2 - 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.

AB - 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.

KW - Chalcogenides

KW - Disordered solids

KW - Localization effects

KW - Pnictides

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