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Condensed Matter > Superconductivity

arXiv:2102.03708 (cond-mat)
[Submitted on 7 Feb 2021]

Title:Crystal structure and properties of iron-based spin-chain compound Ba9Fe3Se15

Authors:Jun Zhang, Alexander C. Komarek, Meiling Jin, Xiancheng Wang, Yating Jia, Jianfa Zhao, Wenmin Li, Zhiwei Hu, Wei Peng, L.H. Tjeng, Zheng Deng, Runze Yu, Shaomin Feng, Sijia Zhang, Min Liu, Yi-feng Yang, Hong-ji Lin, Chien-Te Chen, Xiaodong Li, Jinlong Zhu, Changqing Jin
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Abstract:We report the synthesis of a new quasi one-dimensional (1D) iron selenide. Ba9Fe3Se15 was synthesized at high temperature and high pressure of 5.5 GPa and systematically studied via structural, magnetic and transport measurements at ambient and at high-pressures. Ba9Fe3Se15 crystallizes in a monoclinic structure and consists of face-sharing FeSe6 octahedral chains along the c axis. At ambient pressure it exhibits an insulating behavior with a band gap ~460 meV and undergoes a ferrimagnet-like phase transition at 14 K. Under high pressure, a complete metallization occurs at ~29 GPa, which is accompanied by a spin state crossover from high spin (HS) state to low spin (LS) state. The LS appears for pressures P >36 GPa.
Subjects: Superconductivity (cond-mat.supr-con); Materials Science (cond-mat.mtrl-sci); Strongly Correlated Electrons (cond-mat.str-el)
Cite as: arXiv:2102.03708 [cond-mat.supr-con]
  (or arXiv:2102.03708v1 [cond-mat.supr-con] for this version)
  https://doi.org/10.48550/arXiv.2102.03708
Journal reference: Phys. Rev. Materials 5, 054606 (2021)
Related DOI: https://doi.org/10.1103/PhysRevMaterials.5.054606

Submission history

From: Xiancheng Wang [view email]
[v1] Sun, 7 Feb 2021 03:41:50 UTC (1,381 KB)
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