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Structural and Superconductivity Properties of BaFe2−x Pt x As2

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Abstract

Extraordinary magnetic behaviors, resistivity properties, and lattice parameters of the main sample BaFe2As2 and BaFe2−x Pt x As2 in the variation of x from 0 to 0.4 with the step of 0.1 were investigated. The bulk materials have been prepared by the solid-state reaction method and sealed into a quartz tube. The crystal structure of all samples exhibited the ThCr2Si2-type crystal structure which is in harmony with earlier studies in the literature. The superconducting states with magnetization measurements have been detailed in the wide temperature range 5–170 K, up to a field of 20 Oe. Increasing Pt and decreasing Fe elements in the BaFe2−x Pt x As2 compound deteriorated superconductivity. Using magnetization measurement data, we present the variation of superconducting critical temperature (T c) correlating with a Pt dopant rate from x = 0 to x = 0.4. The dopant rate of x = 0.3 exhibited the limit rate for maximum T c; deterioration of superconductivity was revealed with a dopant rate of more than x = 0.3. This should be explained by varying T c related to a lattice shrinking and pressure effect (geometric factor).

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Acknowledgments

This work was supported by TUBITAK under Project 111T779.

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Authors and Affiliations

  1. Faculty of Technology, Department of Mechanical Engineering, Marmara University, 34722, Goztepe, Istanbul, Turkey

    C. Boyraz

  2. Ataturk Faculty of Education, Department of Computer and Instructive Technology Teacher, Marmara University, 34722, Goztepe, Istanbul, Turkey

    A. Guler

  3. Turkey Atomic Energy Authority, 06510, Cankaya, Ankara, Turkey

    M. Ozdemir

  4. Department of Physics Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey

    Y. Oner

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  1. C. Boyraz
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  2. A. Guler
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  3. M. Ozdemir
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Correspondence to C. Boyraz.

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Boyraz, C., Guler, A., Ozdemir, M. et al. Structural and Superconductivity Properties of BaFe2−x Pt x As2 . J Supercond Nov Magn 30, 1145–1151 (2017). https://doi.org/10.1007/s10948-016-3935-y

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  • DOI: https://doi.org/10.1007/s10948-016-3935-y

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