Skip to main content
Log in

The Pt Dopant Effect on Physical Properties of Ba0.2La0.8Fe2As2

  • Original Paper
  • Published:
Journal of Superconductivity and Novel Magnetism Aims and scope Submit manuscript

Abstract

We briefly report the variation of resistivity and the extraordinary magnetic behavior of the samples Ba0.2La0.8Fe2As2 and Pt-doped Ba0.2La0.8Fe2−xPt x As2 (x = 0, 0.05, 0.1, and 0.15) prepared by a solid-state reaction method. All samples crystallize with the ThCr2Si2-type structure. We have investigated in detail the superconducting state with magnetization measurements in the temperature range 5–170 K, up to a field of 20 Oe. Substitution of Pt for Fe element produced induced the superconductivity. The results of direct substitution of non-isoelectronic Pt for Fe were also studied for similar compositions at different dopant rates (Kamihara et al., J. Am. Chem. Soc., 130, 3296–3297, 2008). Based on magnetization measurement data, we observed the variation of superconducting critical temperature (T c) by increasing the Pt dopant from x = 0 to x = 0.1. The dopant rate of x = 0.15 is the limit point of decreasing superconductivity because of lattice shrinking, attributed to the change of T c. This should be an indication of geometric factor (pressure effect) by Pt substitution for Fe atoms (Li et al. 2008).

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

References

  1. Kamihara, Y., Watanabe, T., Hirano, M., Hosono, H.: Iron-based layered superconductor La[O1−x F x]FeAs (x = 0.05 −0.12) with Tc = 26 K. J. Am. Chem. Soc. 130, 3296–3297 (2008)

    Article  Google Scholar 

  2. Li, L., Yang, Z.R., Ge, M., Pi, L., Xu, J.T., Wang, B.S., Sun, Y.P., Zhang, Y.H.: Pressure effect on superconductivity and magnetism in FeSex. arXiv:0809.0128 (2008)

  3. Izyumov, Y.A., Kurmaev, E.Z.: FeAs systems: A new class of high-temperature superconductors. Phys. Usp. 51, 1261–1286 (2008)

    Article  ADS  Google Scholar 

  4. Johnston, D.C.: The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides. Adv. Phys. 59, 803 (2010)

    Article  ADS  Google Scholar 

  5. Mazin, I., Schmalian, J.: Pairing symmetry and pairing state in ferropnictides: theoretical overview. Phys. C. 469, 614–627 (2009)

    Article  ADS  Google Scholar 

  6. Ishida, K., Nakai, Y., Hosono, H.: To what extent iron-pnictide new superconductors have been clarified: a progress report. J. Phys. Soc. Jpn. 78, 062001 (2009)

    Article  ADS  Google Scholar 

  7. Parker, M.: Iron exposed as high-temperature superconductor, Scientific American. http://scientificamerican.com/article/iron-exposed-as-high-temp-superconductor (2008)

  8. Analytis, J.G., McDonald, R.D., Chu, J.-H., Riggs, S.C., Bangura, A., Kucharczyk, F.C., Johannes, M., Fisher, I.R.: Quantum oscillations in the parent pnictide BaFe2As2: itinerant electrons in the reconstructed state. Phys. Rev. B. 80, 064507 (2009)

    Article  ADS  Google Scholar 

  9. Boeri, L., Dolgov, O. V., Golubov, A. A.: Is LaFeAsO1−x F x an electron-phonon superconductor. Phys. Rev. Lett. 101, 026403 (2008)

    Article  ADS  Google Scholar 

  10. Rotter, M., Tegel, M., Johrendt, D.: Superconductivity at 38 K in the iron arsenide (Ba1−x K x)Fe2As2. Phys. Rev. Lett. 101, 107006 (2008)

    Article  ADS  Google Scholar 

  11. Wu, G., Liu, R.H., Chen, H., Yan, Y.J., Wu, T., Xie, Y.L., Ying, J.J., Wang, X.F., Fang, D.F., Chen, X.H.: Transport properties and superconductivity in Ba1−x M xFe2As2 (M =La and K) with double FeAs layers. EPL. 84, 27010 (2008)

    Article  ADS  Google Scholar 

  12. Katase, T., Kimura, S., Hiramatsu, H., Kamiya, T.: Hosono.: Exploration of new superconductors and functional materials, and fabrication of superconducting tapes and wires of iron pnictides. Phys. Rev. B 85, 140516 (2012)

    Article  ADS  Google Scholar 

  13. Yin, T., Liu, D., Ou, Y., Ma, F., Xie, S., Li, J. F., Li, J.: Nanocrystalline thermoelectric Ca3Co4O9 ceramics by sol −gel based electrospinning and spark plasma sintering. J. Phys. Chem. C 114, 10061–10065 (2010)

    Article  Google Scholar 

  14. Saha, S.R., Drye, T., Kirshenbaum, K., Butch, N.P., Zavalij, P., Paglione, Y.J.: Superconductivity at 23 K in Pt doped BaFe2As2 single crystals. J. Phys. Condens. Matter 22, 072204 (2010)

    Article  ADS  Google Scholar 

  15. Guler, A., Sertkol, M., Saribaev, L., Ozdemir, M., Oner, Y., Ross, J.H.: Superconductivity in Pt and La doped BaFe2As2 compounds prepared by solid-state reaction. IEEE Trans. Magn. 51, 1000504 (2015)

    Article  Google Scholar 

Download references

Acknowledgments

We thank Dr. Oner and Dr. Ozdemir for the laboratory facilities.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Adil Guler.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Guler, A., Boyraz, C. The Pt Dopant Effect on Physical Properties of Ba0.2La0.8Fe2As2 . J Supercond Nov Magn 30, 3285–3288 (2017). https://doi.org/10.1007/s10948-016-3854-y

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10948-016-3854-y

Keywords

Navigation