Journal of the American Chemical Society
Journal of the American Chemical Society
5 years ago

Superconductivity in Alkaline Earth Metal-Filled Skutterudites BaxIr4X12 (X = As, P)

Superconductivity in Alkaline Earth Metal-Filled Skutterudites BaxIr4X12 (X = As, P)
Claudia Felser, Hechang Lei, Binghai Yan, Hideo Hosono, Jiangang Guo, Wujun Shi, Yanpeng Qi
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 be classified into the Bardeen–Cooper–Schrieffer type with intermediate coupling.

Publisher URL: http://dx.doi.org/10.1021/jacs.7b04274

DOI: 10.1021/jacs.7b04274

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