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arXiv · 1708.05166

Superconductivity in alkaline earth metal-filled skutterudites BaxIr4X12 (X = As, P)

Yanpeng Qi·Hechang Lei·Jiangang Guo·Wujun Shi·Binghai Yan·Claudia Felser·Hideo Hosono
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Abstract

We report superconductive iridium pnictides BaxIr4X12 (X = As and P) with a filled skutterudite structure, demonstrating that Ba filling dramatically alters their electronic properties and induces a nonmetal-to-metal transition with increasing the Ba content x. The highest superconducting transition temperatures are 4.8 and 5.6 K observed for BaxIr4As12 and BaxIr4P12, respectively. The superconductivity in BaxIr4X12 can classified into the Bardeen-Cooper-Schrieffer type with intermediate coupling.

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Yanpeng Qi, Hechang Lei, Jiangang Guo, Wujun Shi, Binghai Yan, Claudia Felser, Hideo Hosono. 2017-08-17. Superconductivity in alkaline earth metal-filled skutterudites BaxIr4X12 (X = As, P). https://doi.org/10.1021/jacs.7b04274

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