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.
| Original language | English |
|---|---|
| Article number | 055007 |
| Journal | Science and Technology of Advanced Materials |
| Volume | 15 |
| Issue number | 5 |
| DOIs | |
| 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
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
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TY - JOUR
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, Takanori
AU - Yokoya, Takayoshi
AU - Takano, Y.
PY - 2014/10/1
Y1 - 2014/10/1
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
UR - http://www.scopus.com/inward/record.url?scp=84908530405&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84908530405&partnerID=8YFLogxK
U2 - 10.1088/1468-6996/15/5/055007
DO - 10.1088/1468-6996/15/5/055007
M3 - Article
AN - SCOPUS:84908530405
VL - 15
JO - Science and Technology of Advanced Materials
JF - Science and Technology of Advanced Materials
SN - 1468-6996
IS - 5
M1 - 055007
ER -