TY - JOUR
T1 - Pressure-Induced Superconductivity in Iron-Based Spin-Ladder Compound BaFe2+δ(S1−xSex)3
AU - Takahashi, Hiroki
AU - Kikuchi, Ryosuke
AU - Kawashima, Chizuru
AU - Imaizumi, Satoshi
AU - Aoyama, Takuya
AU - Ohgushi, Kenya
N1 - Funding Information:
Funding: This research was funded by JSPS, Grants-in-Aid for Scientific Research JP20K14396, JP19H05823, JP19H05822, JP18H01159, and JP16H04019. This work was also supported by Nihon University Multidisciplinary Research Grant for 2016–2017, Nihon University President Grant Initiative (2018–2020), and JST CREST Grant No. JP19198318, Japan.
Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/2/1
Y1 - 2022/2/1
N2 - The iron-based superconductors had a significant impact on condensed matter physics. They have a common structural motif of a two-dimensional square iron lattice and exhibit fruitful physical properties as a strongly correlated electron system. During the extensive investigations, quasi-one-dimensional iron-based spin-ladder compounds attracted much attention as a platform for studying the interplay between magnetic and orbital ordering. In these compounds, BaFe2S3 and BaFe2Se3 were found to exhibit superconductivity under high pressure, having a different crystal and magnetic structure at low temperature. We report a brief review of the iron-based spin-ladder compound and recent studies for BaFe2+δ(S1−xSex)3. BaFe2(S0.75 Se0.25)3 is in the vicinity of the boundary of two different magnetic phases and it is intriguing to perform high pressure experiments for studying superconductivity, since effects of large magnetic fluctuations on superconductivity are expected. The effect of iron stoichiometry on the interplay between magnetism and superconductivity is also studied by changing the iron concentration in BaFe2+δSe3.
AB - The iron-based superconductors had a significant impact on condensed matter physics. They have a common structural motif of a two-dimensional square iron lattice and exhibit fruitful physical properties as a strongly correlated electron system. During the extensive investigations, quasi-one-dimensional iron-based spin-ladder compounds attracted much attention as a platform for studying the interplay between magnetic and orbital ordering. In these compounds, BaFe2S3 and BaFe2Se3 were found to exhibit superconductivity under high pressure, having a different crystal and magnetic structure at low temperature. We report a brief review of the iron-based spin-ladder compound and recent studies for BaFe2+δ(S1−xSex)3. BaFe2(S0.75 Se0.25)3 is in the vicinity of the boundary of two different magnetic phases and it is intriguing to perform high pressure experiments for studying superconductivity, since effects of large magnetic fluctuations on superconductivity are expected. The effect of iron stoichiometry on the interplay between magnetism and superconductivity is also studied by changing the iron concentration in BaFe2+δSe3.
KW - High pressure
KW - Insulator-metal transition
KW - Iron-based spin-ladder compound
KW - Pressure-induced superconductivity
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U2 - 10.3390/ma15041401
DO - 10.3390/ma15041401
M3 - Article
AN - SCOPUS:85124869828
SN - 1996-1944
VL - 15
JO - Materials
JF - Materials
IS - 4
M1 - 1401
ER -