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arXiv · 1605.04179

Crystal Chemistry and Structural Design of Iron-Based Superconductors

Hao Jiang·Yun-Lei Sun·Zhu-An Xu·Guang-Han Cao
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Abstract

The second class of high-temperature superconductors (HTSCs), iron-based pnictides and chalcogenides, necessarily contain Fe$_2$$X_2$ ("$X$" refers to a pnictogen or a chalcogen element) layers, just like the first class of HTSCs which possess the essential CuO$_2$ sheets. So far, dozens of iron-based HTSCs, classified into nine groups, have been discovered. In this article, the crystal-chemistry aspects of the known iron-based superconductors are reviewed and summarized by employing "hard and soft acids and bases (HSAB)" concept. Based on these understandings, we propose an alternative route to exploring new iron-based superconductors via rational structural design.

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Hao Jiang, Yun-Lei Sun, Zhu-An Xu, Guang-Han Cao. 2016-05-13. Crystal Chemistry and Structural Design of Iron-Based Superconductors. https://doi.org/10.1088/1674-1056%2F22%2F8%2F087410

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