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Singh, Guangzong Xing, Hongliang Shi, Weitao Zheng, Xiaofeng Fan, Yanming Ma","submitted_at":"2015-06-01T14:44:45Z","abstract_excerpt":"The interplay of superconductivity and magnetism is a subject of ongoing interest, stimulated most recently by the discovery of Fe-based superconductivity and the recognition that spin-fluctuations near a magnetic quantum critical point may provide an explanation for the superconductivity and the order parameter. Here we investigate magnetism in the Na filled Fe-based skutterudites using first principles calculations. NaFe4Sb12 is a known ferromagnet near a quantum critical point. 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