Understanding doping, vacancy, lattice stability and superconductivity in KxFe2-ySe2

分类： 物理学 >> 凝聚态:结构、力学和热性能 分类： 物理学 >> 凝聚态:电子结构、电、磁和光学性质 分类： 物理学 >> 交叉学科物理及相关领域的科学与技术 提交时间： 2016-06-23

刘宇 王刚 应天平 赖晓芳 金士峰 刘宁 胡江平 陈小龙

摘要： Metal-intercalated iron selenides are a class of superconductors that have received much attention but less understood in comparison with their FeAs-based counterparts. Here, the controversial issues such as Fe vacancy, the real phase responsible for superconductivity and lattice stability have been addressed based on first-principles calculations. New insights on the distinct features in terms of carrier doping have been revealed.

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