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; Takanori Wakita; Takayoshi 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, Takanori Wakita, Takayoshi Yokoya, Y. Takano

Research output: Contribution to journal › Article

14 Citations (Scopus)

Abstract

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.

Original language	English
Article number	055007
Journal	Science and Technology of Advanced Materials
Volume	15
Issue number	5
DOIs	https://doi.org/10.1088/1468-6996/15/5/055007
Publication status	Published - Oct 1 2014

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Keywords

Chalcogenides
Disordered solids
Localization effects
Pnictides

ASJC Scopus subject areas

Materials Science(all)

Cite this

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), [055007]. https://doi.org/10.1088/1468-6996/15/5/055007

Pressure-dependent magnetization and magnetoresistivity studies on tetragonal FeS (mackinawite) : Revealing its intrinsic metallic character. / Denholme, S. J.; Okazaki, H.; Demura, S.; Deguchi, K.; Fujioka, M.; Yamaguchi, T.; Takeya, H.; Elmassalami, M.; Fujiwara, H.; Wakita, Takanori ; Yokoya, Takayoshi; Takano, Y.

In: Science and Technology of Advanced Materials, Vol. 15, No. 5, 055007, 01.10.2014.

Research output: Contribution to journal › Article

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

Denholme, S. J. ; Okazaki, H. ; Demura, S. ; Deguchi, K. ; Fujioka, M. ; Yamaguchi, T. ; Takeya, H. ; Elmassalami, M. ; Fujiwara, H. ; Wakita, Takanori ; Yokoya, Takayoshi ; Takano, Y. / Pressure-dependent magnetization and magnetoresistivity studies on tetragonal FeS (mackinawite) : Revealing its intrinsic metallic character. In: Science and Technology of Advanced Materials. 2014 ; Vol. 15, No. 5.

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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.",

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10.1088/1468-6996/15/5/055007