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arXiv · 0904.1607

Properties of KCo$_2$As$_2$ and Alloys with Fe and Ru: Density Functional Calculations

D. J. Singh
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Abstract

Electronic structure calculations are presented for KCo$_2$As$_2$ and alloys with KFe$_2$As$_2$ and KRu$_2$As$_2$. These materials show electronic structures characteristic of coherent alloys, with a similar Fermi surface structure to that of the Fe-based superconductors, when the $d$ electron count is near six per transition metal. However, they are less magnetic than the corresponding Fe compounds. These results are discussed in relation to superconductivity.

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D. J. Singh. 2009-04-10. Properties of KCo$_2$As$_2$ and Alloys with Fe and Ru: Density Functional Calculations. https://doi.org/10.1103/physrevb.79.174520

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