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Takahashi H, Sugimoto A, Nambu Y, et al. Pressure-induced superconductivity in the iron-based ladder material BaFe2S3. Nat Mater. 2015;14(10):1008-12doi: 10.1038/nmat4351.
Takahashi, H., Sugimoto, A., Nambu, Y., Yamauchi, T., Hirata, Y., Kawakami, T., Avdeev, M., Matsubayashi, K., Du, F., Kawashima, C., Soeda, H., Nakano, S., Uwatoko, Y., Ueda, Y., Sato, T. J., & Ohgushi, K. (2015). Pressure-induced superconductivity in the iron-based ladder material BaFe2S3. Nature materials, 14(10), 1008-12. https://doi.org/10.1038/nmat4351
Takahashi, Hiroki, et al. "Pressure-induced superconductivity in the iron-based ladder material BaFe2S3." Nature materials vol. 14,10 (2015): 1008-12. doi: https://doi.org/10.1038/nmat4351
Takahashi H, Sugimoto A, Nambu Y, Yamauchi T, Hirata Y, Kawakami T, Avdeev M, Matsubayashi K, Du F, Kawashima C, Soeda H, Nakano S, Uwatoko Y, Ueda Y, Sato TJ, Ohgushi K. Pressure-induced superconductivity in the iron-based ladder material BaFe2S3. Nat Mater. 2015 Oct;14(10):1008-12. doi: 10.1038/nmat4351. Epub 2015 Jul 20. PMID: 26191659.
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Nat Mater. 2015 Oct;14(10):1008-12. doi: 10.1038/nmat4351. Epub 2015 Jul 20.

Pressure-induced superconductivity in the iron-based ladder material BaFe2S3.

Nature materials

Hiroki Takahashi, Akira Sugimoto, Yusuke Nambu, Touru Yamauchi, Yasuyuki Hirata, Takateru Kawakami, Maxim Avdeev, Kazuyuki Matsubayashi, Fei Du, Chizuru Kawashima, Hideto Soeda, Satoshi Nakano, Yoshiya Uwatoko, Yutaka Ueda, Taku J Sato, Kenya Ohgushi

Affiliations

  1. College of Humanities &Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan.
  2. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Miyagi 980-8577, Japan.
  3. Institute for Materials Research, Tohoku University, Sendai, Miyagi 980-8577, Japan.
  4. Institute for Solid State Physics (ISSP), University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
  5. Bragg Institute, Australian Nuclear Science and Technology Organisation, Locked Bag 2001 Kirrawee DC, New South Wales 2232, Australia.
  6. School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia.
  7. Key laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun 130012, China.
  8. Ultra-High Pressure Processes Group, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan.
  9. Toyota Physical and Chemical Research Institute, Nagakute, Aichi 480-1192, Japan.
  10. Department of Physics, Tohoku University, Sendai, Miyagi 980-8578, Japan.

PMID: 26191659 DOI: 10.1038/nmat4351

Abstract

All the iron-based superconductors identified so far share a square lattice composed of Fe atoms as a common feature, despite having different crystal structures. In copper-based materials, the superconducting phase emerges not only in square-lattice structures but also in ladder structures. Yet iron-based superconductors without a square-lattice motif have not been found, despite being actively sought out. Here, we report the discovery of pressure-induced superconductivity in the iron-based spin-ladder material BaFe2S3, a Mott insulator with striped-type magnetic ordering below ∼120 K. On the application of pressure this compound exhibits a metal-insulator transition at about 11 GPa, followed by the appearance of superconductivity below Tc = 14 K, right after the onset of the metallic phase. Our findings indicate that iron-based ladder compounds represent promising material platforms, in particular for studying the fundamentals of iron-based superconductivity.

References

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