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Fe Vacancy Order and Domain Distribution in A x Fe2−y Se2

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Abstract

The Fe vacancy and its ordering pattern is a unique property of the A x Fe2−y Se2 (A = K, Rb, Cs) superconductors. Below the structural transition temperature T S ∼ 550 K, the system phase separates into the I4/mmm phase with no Fe vacancy and the I4/m phase with the \(\sqrt 5\times \sqrt 5\times 1\) vacancy order. In this work, an Ising-like Hamiltonian defined on the Fe-sublattice is constructed and employed in a Metropolis Monte Carlo simulation to study the Fe vacancy order and the domain distribution under different thermal treatments. A third phase with randomly distributed Fe vacancies and space group I4/mmm is observed in the simulation. The response of the volume fraction of this simulated phase under thermal treatment shows a direct connection to the change of the superconducting shielding fraction under annealing and quenching processes, indicating a close relation between the vacancy disordered I4/mmm phase and the superconducting phase.

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References

  1. Guo, J., et al.: Phys. Rev. B 82, 180520(R) (2010)

    Article  ADS  Google Scholar 

  2. Ricci, A., et al.: Supercond. Sci. Technol. 24, 082002 (2011)

    Article  ADS  Google Scholar 

  3. Ricci, A., et al.: Phys. Rev. B 84, 060511(R) (2011)

    Article  ADS  Google Scholar 

  4. Li, W., et al.: Nat. Phys. 8, 126–130 (2012)

    Article  Google Scholar 

  5. Yuan, R., et al.: Sci. Rep. 2, 221 (2012)

    Article  Google Scholar 

  6. Bao, W., et al.: Chin. Phys. Lett. 28, 086104 (2011)

    Article  ADS  Google Scholar 

  7. Bao, W., et al.: Chin. Phys. Lett. 30, 027402 (2013)

    Article  ADS  Google Scholar 

  8. Ye, F., et al.: Phys. Rev. Lett. 107, 137003 (2011)

    Article  ADS  Google Scholar 

  9. Zavalij, P., et al.: Phys. Rev. B. 83, 132509 (2011)

    Article  ADS  Google Scholar 

  10. Wang, Z., et al.: Phys. Rev. B. 83, 140505(R) (2011)

    Article  ADS  Google Scholar 

  11. Yan, Y., et al.: Sci. Rep. 2, 212 (2012)

    Article  Google Scholar 

  12. Kazakov, S., et al.: Chem. Mater. 23, 4311 (2011)

    Article  Google Scholar 

  13. Ding, X., et al.: Nat. Commun. 4, 1897 (2013)

    Article  Google Scholar 

  14. Duan, C., et al.: arXiv:1706.02182v2 (2017)

  15. Bendele, M., et al.: Sci. Rep. 4, 5592 (2014)

    Article  Google Scholar 

  16. Han, F., et al.: Philos. Mag. 92, 2553 (2012)

    Article  ADS  Google Scholar 

  17. Ryu, H., et al.: Phys. Rev. B 85, 224515 (2012)

    Article  ADS  Google Scholar 

  18. Yang, J., et al.: Phys. Rev. B 94, 024503 (2016)

    Article  ADS  Google Scholar 

  19. Berlijn, T., et al.: Phys. Rev. Lett. 109, 147003 (2012)

    Article  ADS  Google Scholar 

Download references

Acknowledgements

The work at the University of Virginia is supported by the U.S. Department of Energy, Office of Basic Energy Science, DE-FG02-01ER45927.

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Authors and Affiliations

  1. Department of Physics, University of Virginia, Charlottesville, VA, 22904, USA

    Chunruo Duan & Despina Louca

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  1. Chunruo Duan
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  2. Despina Louca
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Correspondence to Chunruo Duan.

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Duan, C., Louca, D. Fe Vacancy Order and Domain Distribution in A x Fe2−y Se2 . J Supercond Nov Magn 31, 757–761 (2018). https://doi.org/10.1007/s10948-017-4381-1

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  • DOI: https://doi.org/10.1007/s10948-017-4381-1

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