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Elastic Properties of New Pt-based Superconductors CaPt3P and SrPt3P as Evaluated from First-Principles Calculations

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Abstract

By means of the first-principles calculations, the elastic properties of the newest platinum-based superconductors CaPt3P and SrPt3P are evaluated and analyzed in comparison with their nearest pnictogen-containing chemical analogues: superconducting SrPtAs and SrPt2As2. Our studies reveal that CaPt3P and SrPt3P are mechanically stable materials, which adopt relatively weak elastic anisotropy and will behave in a ductile manner. As compared with SrPtAs and SrPt2As2, the examined phases demonstrate increased lattice stiffness and will exhibit higher hardness. Nevertheless, the SCs CaPt3P and SrPt3P should be classified as soft materials.

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Acknowledgements

Financial support from the RFBR (grant 12-03-00038) and from the Program for Basic Research of the Ural Branch, Russian Academy of Sciences (grant 12-T-3-1003) is gratefully acknowledged.

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  1. Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, 620990, Ekaterinburg, Russia

    I. R. Shein & A. L. Ivanovskii

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  1. I. R. Shein
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  2. A. L. Ivanovskii
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Correspondence to A. L. Ivanovskii.

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Shein, I.R., Ivanovskii, A.L. Elastic Properties of New Pt-based Superconductors CaPt3P and SrPt3P as Evaluated from First-Principles Calculations. J Supercond Nov Magn 26, 3167–3170 (2013). https://doi.org/10.1007/s10948-013-2335-9

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  • DOI: https://doi.org/10.1007/s10948-013-2335-9

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